David Hasselhoff was the star of ‘Knight Rider,’ but his sentient sidekick (voiced by William Daniels) often stole the show.

NEWS
In our new podcast, 'Mental Floss Presents: The Quest for the North Pole,' we’ll dive into the adventure, excitement, and danger surrounding our obsession with the North Pole.
The Bedazzler—a rhinestone-stamping arts and crafts tool—promised to turn plain pairs of jeans into designer duds. If you squinted.
For many American Millennials, a slice of Viennetta ice cream cake was the height of luxury—and they’ll finally get the chance to experience it again.
If you used TurboTax or H&R Block to prepare your taxes last year, your $600 stimulus check from the IRS might be in the wrong account.
Between pandemic-prompted theater shutdowns and straight-to-VOD releases, 2020’s list of top box office movies is a strange one.
Massachusetts already has its fair share of state symbols (including Boston cream pie and Boston cream doughnuts), but you can never have too many.
Last September, an unnamed bird-watcher found a trove of 1300 Celtic gold coins dating back to the 1st century CE.
On December 29, several people on the Hawaiian island of Oahu reported seeing an illuminated blue object fly through the night sky.
Click a button and tree.fm will play you recordings from the rainforests of South America, the temperate forests of Europe, and beyond.
Some popular books—especially ones written by Barack and Michelle Obama—practically lived on The New York Times Best Seller list in 2020.
Here is how much you can expect from your second COVID-19 stimulus check and when to expect it in 2021.
While the COVID-19 pandemic was a driving force behind some of Mental Floss's most popular stories of 2020, the historical precedent of the 1918 pandemic was clearly of interest, too.
Born in Pasadena, California, on June 22, 1947, science fiction author Octavia E. Butler was one of the most significant literary figures of the 20th century.
Ebenezer Place in Wick, Scotland, is 6 feet and 9 inches long, and it's home to only one street address.
The slang term has been around for decades, but its origins might have less to do with appearance and more to do with mules.
Cats seem to enjoy booping humans on their foreheads. Is it a sign of affection, or yet another sign of condescension?
John F. Kennedy's stirring speech on September 12, 1962, sparked a passion for space exploration that eventually led us right to the moon.
The Merugo Parasitological Museum has more than 300 life-sucking species on display, including a 28.9-foot long tapeworm. It's got date night written all over it.
The next time you need to clear snow off your walkway and driveway, try rolling it into a giant snowball instead of shoveling it.
If you have a brown paper bag at home, you are one step closer to baking the most amazing pie of your life.
From the chips, to the toppings, to the molten yellow cheese that’s become synonymous with the dish, the history of nachos can tell us a lot more than their simple ingredients list might suggest.
The celebrated author of 'Go Tell It on the Mountain' used music to inspire and influence his work. Now you can listen, too.
The New River Gorge National Park has over 70,000 acres of lush forest land and 53 miles of whitewater rafting.