These great Agatha Christie adaptations test the audience to figure out the mystery.

MYSTERY
In summer 1993, hundreds of people claimed to have found hypodermic needles inside cans of Pepsi. Was it a hoax, a disgruntled employee, or something worse?
A deep dive into the origins and meaning of the classic nursery rhyme “Little Miss Muffet.”
What caused some of these ominous events still remains a total mystery.
The CIA's encrypted art sculpture has puzzled cryptographers for decades. The man with the answers is finally ready to clue them in.
The medieval hero known as Wade was thought to have encountered elves in his adventures. But they might have been wolves instead.
From the Bermuda Triangle to the ‘Mary Celeste,’ here are some of the most puzzling enigmas of the deep.
Delve into the mystery surrounding the assassination of Grigori Rasputin, and see how the circumstances of his death have taken on a life of their own.
For the past century, the quest to break the Beale Ciphers has attracted the military, computer scientists, and conspiracy theorists. All have failed.
A submarine patrol blimp departed with a two-man crew in the morning. It landed with no one on board.
First they made history, then they vanished from it.
Johann Sebastian Bach was buried in an unmarked grave in 1750. Nearly two centuries later, a doctor identified the composer’s bones from skeletal evidence of “organist’s disease.”
In 1866, Kennicott was found dead near the Yukon River. It would be 150 years before anyone knew why.
Chaco Canyon was once the vibrant religious center of a Native American culture whose collapse long remained a mystery—until pack rat middens revealed an important clue.
Here's why medieval artists loved putting horns on Moses.
The tiny little tar blobs could be nothing—or they could be dangerous.
The red buckets are getting more than loose change.
Scientists have long suspected that a gigantic eruption was behind the strange atmospheric phenomena of 1831. Scientists have finally figured out which volcano blew its top.
You might want to skip dinner after reading these.
You don’t want to run into these creatures in the woods after dark—or ever.
The man going by D.B. Cooper hijacked a plane in 1971 and got away (almost) without a trace. Now, new evidence has been uncovered that might point to his identity.
An obscure German new wave song has stumped internet sleuths for years. One of them finally cracked the case.