13 Questionable Weight-Loss Products From History

Screenland // Public Domain
Screenland // Public Domain

By the late 19th century, Americans had developed a stigma around fatness. At the same time, magazines were becoming far more influential as both their number and circulation exploded. In 1860, 575 magazines were published in the United States; by 1905, that number was 7500. With more magazines came more advertising, and with a cultural shift toward thinness as a beauty ideal, many of those ads began promising weight loss, especially in film fan magazines and other publications geared toward women. But some of the methods they proposed for “reducing” (dropping the pounds) were questionable, while others were downright bizarre—and even dangerous.

1. FATOFF

Ad for Fatoff from Life magazine
Life magazine // Public Domain

Introduced around 1909, Fatoff claimed to simply melt your fat away with “No Dieting! No Dosing! External application only!” In one 1912 ad, the supposed creator of the product, Mary Spencer Borden, gave a confusing account of its origins: “I, Mary Spencer Borden, under oath say that less than six years ago I was a monstrosity with fat and rheumatism, and I weighed over 225 pounds in the upper part of my body and my lower limbs had atrophied. […] I had tried every known remedy to reduce my fat without any success whatever until I thought of this wonderful ‘FATOFF.’ […] I cannot say I discovered it. It was an inspiration.” Department of Agriculture chemists felt differently, calling the product an “unmitigated fraud” after a chemical analysis revealed Fatoff to “consist of 10 per cent soap and about 90 per cent water.”

2. DR. WALTER’S FAMOUS MEDICATED REDUCING RUBBER GARMENTS

An ad for Dr. Walters Rubber Reducing Garments in the NYT
New York Times // Public Domain

Made of rubber with a “medicated” coating, Dr. Walter’s garments claimed to stimulate weight loss by causing the wearer to sweat. The brand sold a garment for every conceivable problem area, including the chin, neck, waist, bust, hips, legs, ankles, arms, and hands. (Dr. Walter also offered a terrifying rubber face mask—“Excellent for bleaching the face.”)

Not only would Dr. Walter’s Famous Medicated Reducing Rubber Garments fix unsightly ankles and banish a double chin, but they even claimed to be comfortable. While wrapping your torso in rubber may not scream “comfortable” to us now, rubber girdles—Dr. Walter’s most popular product—were a welcome alternative to the classic corset, with its rigid, painful boning. Beginning in 1904, Walter submitted patents on a number of rubber garments, and she advertised her “reducing garments” in magazines like Vogue and newspapers like The New York Times from 1906 through the early 1920s. By 1922, ads touted “millions” of sales. “Reducing” corsets and girdles from various brands continued to be sold through the 1930s, serving the same purposes as today’s Spanx—except that they claimed to make you “look thin while getting thin.”

3. DR. LAWTON’S FAT REDUCER

Ad for Dr Lawton's Fat Reducer in the Tatler
The Tatler // Public Domain

Launched around 1921, Dr. Lawton’s Fat Reducer was a suction cup device that claimed to “dissolve and eliminate superfluous fat from the system” using vacuum massage. Designed like a plunger, it produced results in four or five days, the ads asserted, by “break[ing] down the fat tissue” through its “massage effect.” The company offered a money-back guarantee if the customer didn’t see progress after 11 days.

4. LESSER SLIM FIGURE BATH

An ad for a weight loss bath
Chicago Sunday Tribune // Public Domain

The Lesser Company advertised its Slim Figure Bath as “the sensation of Europe,” catching consumer eyes with images of naked, frolicking women. Presented as a German invention, Slim Figure Bath ads referred to “clinical tests” by “prominent Berlin physicians” and something called “the famous Nauheim principle”—representing the brand as exotically European and playing it up as highly scientific and modern. But Slim Figure was merely one brand of bath powder claiming the magical ability to melt fat—and like its competitors Florazona, Fayro, and Every Woman’s Flesh Reducer, it simply didn’t work.

According to Carl Malmberg, author of a 1930s exposé on fad diets called Diet and Die, Lesser Slim Figure Bath was composed of corn starch, baking soda, table salt, borax, and tartaric acid (which is present in cream of tartar). It did not need to come from a German lab but could be mixed up in the kitchen. Like the ads claimed, it was “absolutely harmless,” but it was also absolutely useless as a weight-loss product, with the American Medical Association (AMA) calling it an “elaborately exploited piece of quackery.”

5. DAINTY-FORM REDUCING CREAM

An ad for a weight loss cream
Screenland // Public Domain

Creams that claimed to dissolve fat were another popular product in the 1920s. In addition to Dainty-Form Reducing Cream, consumers could purchase Melto Reducing Cream, Slendaform Reducing Cream, Franco French Reducing Cream, and the specialized FLEC Ankle Reducing Cream. “Ads for passive [weight-loss] products such as pills, tea, and soap were usually aimed at women,” writes Heather Addison, a film studies scholar, in her book Hollywood and the Rise of Physical Culture. Conversely, ads aimed at men often touted exercise and promised to build muscle. Dainty-Form cultivated its feminine image, often including testimonials from Ziegfeld Follies chorus girls in its advertisements alongside images of sylphlike women.

6. LA MAR REDUCING SOAP

An ad for a weight loss soap
Picture-Play Magazine // Public Domain

La Mar Reducing Soap was a coconut-oil soap tinged with potassium iodide and sassafras that claimed to melt away fat while shrinking skin so that there would be no excess skin after the weight was lost. It sold at 50 cents per bar, and customers hoping to become thin could purchase the accompanying Slenmar Reducing Brush for an additional $3. At its height, the company sold 200 to 300 soaps per day, though it reportedly spent $120,000 advertising the product against just $150,000 in annual receipts. The head of the AMA’s investigative wing called the product “unadulterated hokum,” and in 1926, it was declared a fraud by the U.S. Postmaster General and the company was barred from advertising or processing sales through the mail.

7. REDUCINE

An ad for Reducine
Screenland // Public Domain

Reducine was a “pleasant cream” that caused a “harmless chemical reaction […] during which the excess fat is literally dissolved away”—and it prompted the first-ever Federal Trade Commission case against a weight-loss product. In 1927, the FTC declared that Reducine was “useless and of no value for the purposes for which it is so advertised.” As a one-two punch against this fraudulent advertising, the FTC issued a cease and desist order to both McGowan Laboratories, which made Reducine, and a publishing company that had been running its ads in the magazine True Romances. By accepting the advertisements, the FTC ruled, the publisher had become “purposely and knowingly party to and part of a false and fraudulent plan for the misleading and deceptive advertisement and sale of a product”—an illegal act [PDF]. Cease and desist orders, as well as private agreements to shed advertising of questionable products, became key parts of the FTC's toolkit in attempting to root out sham weight-loss products in the following years.

(The “reducing cream” Reducine differed from another cream called Reducine, which was sold around the same time—and still is—as a remedy for horse lameness.)

8. WEIL SCIENTIFIC REDUCING BELT

An ad for Weil Reducing Belt
Spicy-Adventure Stories // Public Domain

First appearing around 1922, the Weil Scientific Reducing Belt promised to “melt away surplus fat” thanks to a “massage” action that would occur as the body moved against the “self-massaging belt.” Unlike most of the weight-loss products we’ve highlighted here, Weil’s belt was marketed primarily to men, advertising in magazines like Popular Mechanics, The Rotarian, The American Legion Weekly, and Brotherhood of Locomotive Firemen and Enginemen’s Magazine. Even ads in female-focused movie magazines like Screenland were headlined with callouts to “Fat Men!” The belt spent more than a decade on the market, but in 1936, the Federal Trade Commission launched an inquiry into the Weil Company for fraudulent advertising claims, eventually issuing a cease and desist order for any marketing asserting that the Weil Scientific Reducing Belt could actually reduce weight or fat, build up muscle, increase circulation, increase energy, “or otherwise improve the health” [PDF].

9. SILPH REDUCING CHEWING GUM

“Just think that all one has to do to take off ugly—unsightly rolls of FAT is to chew two or three pieces of a refreshing, delightful chewing gum.” Just think! Unlike many other so-called “obesity cures,” Silph Reducing Chewing Gum actually had the power to effect weight loss—but that’s because, despite marketing claims that it “contains no thyroid or dangerous drugs” [PDF], Silph included desiccated animal thyroid that exerted a hazardous influence on the metabolism. This mid-1920s product was also laced with laxatives and poisonous pokeroot. In 1926, the Post Office issued a fraud order and banned the product from being advertised or shipped by U.S. mail.

The idea of weight-loss gum reappeared in the early 1970s with Vel-X Gum. Advertised in comic books, Vel-X was investigated by the FDA and banned in 1972 from claiming any weight-loss properties.

10. NEUTROIDS

An ad for the weight loss supplement Neutroids
Screenland // Public Domain

To promote his weight-loss invention Neutroids, Dr. R.L. Graham offered a bizarre explanation of why the body produces fat. “The fat in your body is caused by a simple chemical process,” ads explained. “Yeast cells in your stomach combine with starch and sugar and form ALCOHOL. When alcohol gets in the blood, fatty tissue is made instead of healthy, lean muscle. Fat people, even though they may be TOTAL ABSTAINERS have four billion yeast cells (or more) in their stomachs—enough to make 4 ounces of alcohol a day!” The solution: Neutroids, which purportedly destroyed yeast cells in the stomach and thus prevented the body from developing fat. The ads even included a helpful visualization of the resulting “reduction in stomach yeast cells,” in the form of a sketch of what looks like piles of grain.

Of course, Dr. Graham was wrong about why the body produces fat, and while his Neutroids could potentially have caused weight loss, it was not for the reason he asserted. According to analysis by the AMA’s Bureau of Investigation, the tablets contained 50 percent iodol, which the Bureau described as “distinctly poisonous”—a substance known to cause emaciation and death if taken in significant amounts.

11. LUCKY STRIKE CIGARETTES

An ad for Lucky Strike cigarettes
Collection of Stanford Research Into the Impact of Tobacco Advertising // Used with permission

Beginning in 1929, Lucky Strike Cigarettes ran an ad campaign urging people to lose weight by having a smoke whenever they felt a craving for food. Marketers considered a tagline that rhymed, “[W]hen tempted to nibble remember your middle. Light up a Lucky … be smart, be slender!” They eventually settled on the simple command “Reach for a Lucky instead of a sweet.” However, facing the threat of lawsuits from candy-makers, Lucky Strike dropped the word “sweet,” telling consumers to just “Reach for a Lucky instead.”

Lucky Strike ads condemned “harmful reducing girdles, fake reducing tables [and] other quack ‘anti-fat’ remedies condemned by the Medical profession,” explicitly positioning their cigarettes as a safe, doctor-approved weight-loss alternative to “ridiculous and dangerous nostrums.” Oddly enough, the company did not claim that Lucky cigarettes themselves caused weight loss, but only that the practice of having a smoke instead of a snack led to weight loss. We now know that smoking is an appetite-suppressant—and not just if you reach for a cigarette instead of a candy bar.

12. VIGOR’S HORSE ACTION SADDLE

“The best exercise for the strong, the weak, also the blind, lame or crippled”—or so it claimed—Vigor’s Horse Action Saddle promised to cure everything from obesity to hysteria. Though it may look ridiculous to us today, in 1894 the British medical journal The Lancet called the product “very ingenious.” Vigor & Co. sold multiple versions of this device, with the cheapest costing 7 guineas and the most expensive going for 21 guineas. The models meant for women came equipped with a side saddle, while the men’s versions were designed for the user to sit astride. Though you won’t find horse-riding machines at workout facilities nowadays, the devices were relatively popular in their time—the Titanic even included a motorized version in its first-class gymnasium in 1912.

13. HEMP BODI-MASSAGER

Sold during the 1930s by the Conley Company, the Hemp Bodi-Massager offered to roll your fat away. Equipped with rubber balls attached to a handle, the product claimed to massage “just like skillful human hands,” but the Council on Physical Therapy at the AMA reported that “it did exactly what, in practicing good massage, a masseur tries to avoid,” pinching the skin instead of kneading deep tissue. In 1935, the FTC blocked the Conley Company from a laundry list of claims, including any statements that the Hemp Body-Massager caused weight-loss or that it “works like magic” [PDF].

20 Surprising Facts About King Tutankhamun

The burial mask of Egyptian King Tutankhamun.
The burial mask of Egyptian King Tutankhamun.
Hannes Magerstaedt/Getty Images

If you can only name one Egyptian pharaoh, it’s likely King Tut. Born around 1343 BCE, Tutankhamun made history as the youngest known monarch to preside over the ancient Egyptian empire. But that wasn’t his only claim to fame. In life, King Tut made important political decisions; in death, he captivated the public’s fascination and ignited their interest in mummies.

The discovery of King Tut's pristine tomb in 1922 remains one of the most important moments in all of Egyptian archaeology. From his confusing lineage to his impact on pop culture, here’s what you need to know about King Tutankhamun.

1. King Tut’s parents were related.

Tutankhamun was likely inbred—something that wasn’t uncommon with royal families trying to maintain a “pure” bloodline throughout history. Around 2010, an analysis of DNA taken from the mummies of King Tut and his relatives revealed that the boy pharaoh’s parents had been brother and sister, but that discovery has since been disputed.

Tut’s father has been identified as the heretic Akhenaten, but the identity of his mother remains unknown. At least one archaeologist believes that Tut’s mother was actually Queen Nefertiti—Akhenaten's cousin, and one of his wives.

2. King Tut had an incestuous relationship of his own.

King Tut was married to a woman named Ankhesenamun, who was the daughter of Akhenaten and Nefertiti. That made her Tutankhamun’s half-sister—or his full sister, if the theory about Nefertiti being his mother is true.

King Tut fathered two daughters with his wife, but unfortunately, both children were stillborn. Their bodies were mummified and eventually interred in King Tut’s tomb with him. Ankhesenamun outlived Tutankhamun and possibly got married to the pharaoh Ay (Tut’s uncle) after Tut’s death.

3. King Tut became pharaoh at age 9.

As the grandson of the pharaoh Amenhotep II and the son of pharaoh Ankhesenamun, Tutankhamun was destined for the throne. He assumed his position as Egypt’s leader at the young age of 9, and ruled until his death 10 years later around 1324 BCE. It is believed that King Tut is the youngest pharaoh ever to rule over the ancient Egyptian empire. Because he was so young when he came into power, his uncle Ay was likely in charge during those early years.

4. King Tut reversed his father’s religious reforms.

King Tut didn’t need to do much to impress his subjects—his father, pharaoh Akhenaten, had been a disastrous ruler. Akhenaten changed the established religion to focus on the worship of one god, the sun deity Aten, which left him branded as a heretic. Akhenaten also moved the holy capital from Thebes to Amarna.

When Tut became pharaoh he undid his father’s changes and declared Thebes to be the religious center once again. This helped him earn the trust of his people during his brief reign.

5. King Tut changed his name.

Profile of a wooden statue of King Tutankhamun.
Profile of a wooden statue of King Tutankhamun.
Hulton Archive/Getty Images

King Tut went by many names during his lifetime. He was born with the name Tutankhaten, which translates to “living image of Aten.” After he become pharaoh, he changed his name to Tutankhamun or “living image of Amun.” This change was a reflection of Tut’s devotion to the god Amun, whom his father had neglected in favor of the god Aten. Today, Tutankhamun is most commonly known as King Tut.

6. King Tut had health issues.

King Tut had a severe bone disease that left him disabled. He had a clubbed left foot, which made it hard for him to move around. In ancient art he is regularly depicted sitting down when engaging in physical activities like archery, whereas other pharaohs were always shown standing up in similar scenarios. It’s believed that Tut’s inbred lineage contributed to his physical issues. CT scans of his mummy showed that his left leg had been broken and infected, which may have contributed to his untimely death.

7. Experts used to suspect that King Tut had been assassinated.

King Tut’s mummy was discovered with a hole in its skull, leading some people to believe that the young pharaoh had been assassinated with a blow to the head. This theory has since been widely debunked by experts. It’s now suspected that the hole was either put there by embalmers when King Tut was being mummified or it was created when archaeologists first removed the mummy’s gold mask. It’s much more likely that the infection in his leg was the cause of his death.

8. A chariot accident may have contributed to King Tut’s death.

King Tutankhamun's burial chariot, which was discovered in the pharaoh's tomb.
King Tutankhamun's burial chariot, which was discovered in the pharaoh's tomb.
Art Media/Print Collector/Getty Images

If King Tut did indeed die from a broken leg, the question still remains of how he broke his leg in the first place. According to one theory, the teen king died in a horrible chariot accident, which is why one side of his body—including his leg—was found crushed. The chariots used by royalty in ancient Egypt were small and light, allowing them to reach high speeds. Although there’s no evidence that chariots were used for racing during this period, they were used during war and for hunting rides.

9. King Tut wasn’t history’s only young pharaoh.

King Tut was likely the youngest pharaoh to lead Egypt, but not my much. Cleopatra became co-regent with her younger brother (and husband) Ptolemy XIII in 51 BCE when he was just 10 years old. Looking beyond ancient Egypt, there are many young monarchs from history who shave years off Tut’s age record. China, Russia, England, Spain, and France are just a few countries that have crowned “rulers” when they were babies.

10. King Tut’s successors tried to erase him from history.

While King Tut did a lot to reverse his father’s unpopular reforms during his lifetime, none of it did much to protect Tut’s legacy in the long run. His successors did their best to remove his wife, Ankhesenamun, from history—and the memory of Tutankhamun along with her.

Tut was buried quickly and in a small tomb normally reserved for private citizens, not one of the grander tombs meant for pharaohs. Because his tomb was out of the way, it remained untouched for centuries until it was rediscovered in 1922. Now King Tut is the most famous Egyptian pharaoh of all time.

11. King Tut's tomb was robbed—twice.

Crates are carried out of King Tutankhamun's tomb in 1923.
Crates are carried out of King Tutankhamun's tomb in 1923.
Hulton Archive/Getty Images

Before King Tut’s tomb was discovered by Howard Carter in 1922, it was visited by grave robbers. The first break-in took place shortly after Tutankhamun was laid to rest. Following that initial incident, there was rubble blocking the burial chambers, but it didn't take long for a second set of intruders to tunnel their way in. Carter found the tomb in shambles with entryways blocked off to provide further protection to Tutankhamun.

12. King Tut had three coffins.

Inside King Tut’s stone sarcophagus were three coffins: The outermost pair were made of gilded wood and the inner coffin was crafted out of solid gold. Over the head and shoulders of the mummy was the ornate gold death mask that many people associate with Tutankhamun. The mummy was placed inside the Russian nesting doll-style coffins, and everything was put inside a large quartzite stone sarcophagus with a pink granite top.

13. Some people think King Tut’s tomb is cursed.

King Tut’s tomb has inspired many legends since it was discovered decades ago. Because many people associated with the site have subsequently met with misfortune, stories have spread about its supposed curse. Some of the victims of this so-called curse include George Jay Gould, a financier who got sick after visiting the tomb in 1923, and George Herbert, 5th Earl of Carnarvon, who died of blood poisoning after funding the dig. This so-called curse has been blamed for more than a dozen deaths.

14. King Tut was entombed with a meteorite dagger.

The tomb of Tutankhamun contained many extraordinary objects, one of which was a dagger carved from a meteorite. The dagger was found on the body of the mummy when he was discovered, but it wasn’t until a few years ago that portable x-ray fluorescence spectrometry revealed that the materials came from space. The iron in the blade contained 10.8 percent nickel and .58 percent cobalt. Such a high nickel percentage indicated that the iron came from a meteorite, not Earth.

15. There are no hidden rooms in King Tut’s tomb.

Archaeologists surrounding sarcophagus in King Tut's tomb.
Archaeologists surrounding sarcophagus in King Tut's tomb.
Ben Curtis, AFP/Getty Images

Even after it was excavated, King Tut’s tomb continued to capture the imaginations of archaeologists. In 2015, a British archaeologist put forth a theory based on laser scans that a second room was hidden behind a wall of the tomb and waiting to be explored. He even suggested that Tutankhamun’s stepmother, Queen Nefertiti, might be entombed there. That idea was put to rest when a comprehensive ground-penetrating radar survey showed there were no hidden rooms or corridors adjacent to the tomb.

16. DIY repairs were made on King Tut’s burial mask.

After surviving 3000 years in a tomb in Egypt, King Tut’s iconic gold death mask was badly damaged when, around 2014, the mask’s braided beard broke off, and museum curators used epoxy glue to reattach it. This improvised solution may have ended up causing more lasting damage than the accident itself. Epoxy glue is hard to remove, and attempts to scrape off the adhesive resulted in permanent scratch marks on the artifact’s priceless gold face.

17. King Tut was buried with an ancient board game.

The ancient board game senet.
The ancient board game senet.
Dmitry Denisenkov via Flickr // CC BY-SA 2.0

One of the world’s oldest board games was discovered inside King Tut’s tomb. Senet, or “passing,” had been played in Egypt for 1800 years prior to Tutankhamun’s death. It was played by people of all class levels, and though the exact rules have been lost to time, it’s believed to have something to do with life and death. It even may have been an early version of backgammon.

18. King Tut rocked pop culture.

When his tomb was discovered in the early 20th century, King Tut had a massive impact on pop culture. The Egyptian aesthetic infiltrated the 1920s, appearing in fashion, home design, and architecture. Americans especially were so fascinated by King Tut that president Herbert Hoover even went so far as to name his dog after the young monarch. Tut’s impact was felt for decades after his discovery. The historical figure has been depicted countless times in movies, songs, and television shows.

19. King Tut’s tomb recently received a makeover.

English Egyptologist Howard Carter examines the golden sarcophagus of Tutankhamun in Egypt in 1923.
English Egyptologist Howard Carter examines the golden sarcophagus of King Tutankhamun in Egypt in 1923.
Harry Burton/Apic/Getty Images

After years of traffic from tourists, King Tut’s tomb closed to visitors in 2009 to undergo a long conservation project. At the beginning of 2019, the archaeological site finally reopened to the public. Today, the attraction features an air filtration and ventilation system, restored wall paintings, a viewing platform, and new barriers to protect precious artifacts from viewers. King Tut’s tomb is one of the most popular destinations for tourists visiting Egypt.

20. We may finally know what King Tut really looked like.

By conducting a virtual autopsy of his mummy with CT scan data, scientists were able to build a 3D model of what King Tut may have looked like when he was alive 3000 years ago. The computer-generated image looks much different than the striking face depicted on Tut’s iconic gold mask. Rather than the god-like figure that’s been shown countless times in pop culture, Tutankhamun was a frail, ordinary teenager in reality.

10 Enchanting Places That Align with the Vernal Equinox

A shadowy serpent appears at Chichen Itza on the equinox.
A shadowy serpent appears at Chichen Itza on the equinox.
Wikimedia Commons // Public Domain

On Thursday, March 19, the vernal equinox heralded the first day of spring in the Northern Hemisphere. Ancient civilizations built calendars and observatories to track the movements of the stars and mark this monumental time. Now, people still partake in a variety of traditions and rituals to honor the day when light and dark become equal. To take your celestial celebrations to the next level, here are 10 places that align with the spring equinox.

1. On the vernal equinox, a massive snake appears on the temple at Chichen Itza.

Legend says that on the spring and fall equinoxes, the Maya city of Chichen Itza receives an otherworldly visitor: Kukulcan, the feathered serpent deity. On these days, a shadowy snake slithers down the side of the god's namesake pyramid. As the temple darkens, a single strip of light stretches from the top of the northern staircase to the snake head resting at the bottom, creating the illusion of a wriggling reptile.

2. A beam of light illuminates a petroglyph within Arizona’s Boulder House each vernal equinox.

The Boulder House in Scottsdale, Arizona, looks like a strange home wedged amid a jumble of rocks. But it’s actually a modern house built around a sacred Native American site. The Empie family, who bought the parcel of desert land in the 1980s, commissioned architect Charles Johnson to transform the cluster of 1.6-billion-year-old boulders into a functional house. Johnson crafted a unique structure, incorporating the rocks into the house’s foundation and preserving the prehistoric carvings. On the equinox, sunlight pierces between two boulders in the unusual abode, striking a spiral petroglyph on the wall to create a dazzling piece of home decor.

3. On the vernal equinox, a group of Moai on Easter Island stare directly at the sunset.

Seven Moai gaze face toward the horizon
On the equinox, these Moai stare directly at the setting sun.
abriendomundo/iStock via Getty Images

People aren’t the only ones who pause to watch the sun slip beneath the horizon on the first day of spring. On Easter Island, at a sacred site called Ahu Akivi, a line of seven Moai—the island’s giant, mysterious heads—gaze directly at the point at which the sun sets in the sky on the equinox.

4. Each vernal equinox, light drenches a petroglyph-filled cairn at Loughcrew.

The hills of Loughcrew, one of Ireland’s four main passage tomb sites, are crowned by 5000-year-old megalithic structures. At dawn on the equinox, sunlight fills Cairn T, a passage tomb carved with astoundingly well-preserved examples of Neolithic art. As the light dissolves the darkness, the cup marks that dimple its walls and the symbols adorning its back stones blaze into view. The illumination lasts for about 50 minutes, giving observers ample time to take turns squeezing into the cairn.

5. On the vernal equinox, light streams through one of the Mnajdra Prehistoric Temples.

The Mnajdra Prehistoric Temples on Malta’s southern coast are archaeological wonders. They were built between 3600 and 2500 BCE and are believed to be among the world’s oldest freestanding stone buildings. Not much is known about the people who created these megalithic masterpieces, though it’s clear they constructed one of the temples with an eye to the heavens. On the equinox, the sun streams through the South Temple’s main doorway, flooding the structure’s major axis with light.

6. On the vernal equinox, the sun sits directly atop the main temple at Angkor Wat.

Watching the sun rise over Angkor Wat would be a magical experience any day. Crowds hush as colorful hues paint the world’s largest religious structure with a gilded glow. Dawn at Angkor Wat is even more special on the equinoxes. Then, the sun rises behind the main temple before briefly seeming to balance on its tip like a fiery halo.

7. On the spring equinox, the sun rises through the entrance to Stonehenge Aotearoa.

Stonehenge has inspired replicas around the globe—including as far away as New Zealand. Stonehenge Aotearoa, which opened in 2005, was built by the Phoenix Astronomical Society. The structure is an astronomical tool for observing the local skies, and blends modern astronomy with ancient starlore. If you stand in the center of the circle on the Southern Hemisphere's vernal equinox, you can watch the sun rise directly through the Sun Gate, two carved pillars that flank the entrance to the henge.

8. The shadow of the intihuatana at Machu Picchu disappears at noon on the equinox.

A curious stone structure stands atop a temple at Machu Picchu. It’s one of the rare surviving intihuatanas that wasn’t demolished by the Spanish conquistadors. This “hitching post of the sun” is believed to have been an astronomical tool. At noon on the equinox, the granite pillar’s shadow briefly vanishes. Unfortunately, the invaluable object now looks a bit battered. In 2000, a crane toppled into the intihuatana during the filming of a beer commercial, smashing part of it.

9. At sunrise on the spring equinox, the sun bursts through the door of a temple at Dzibilchaltún.

Sunrise at Dzibilchaltún
Each equinox, the sun appears within the door of the Temple of the Seven Dolls.
renatamsousa/iStock via Getty Images

Though now reduced to a medley of ruins dotting the jungle, Dzibilchaltún was once the longest continually inhabited Maya administrative and ceremonial city. The star attraction here is the Temple of the Seven Dolls, a building named for the mysterious human-like figures discovered inside. At dawn on the equinox, the sun shines through the temple’s main door. It’s believed the sacred structure was aligned with the equinoxes to mark the beginning of the planting season and the end of the harvesting season.

10. The 'Woodhenge' at the Cahokia Mounds aligns with the sunrise on the equinox.

During the Mississippian cultural period, Cahokia's population exceeded that of London. In addition to giant pyramids, the North American city also featured circles of wooden posts, since dubbed “Woodhenge.” The wooden markers were likely used to track the sun’s movements. One of the posts aligns with the equinoxes, as well as with the front of Monks Mound. On sunrise on the equinox, it looks as though the sun is emerging from the enigmatic earthwork.

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