Built in the 12th century in Slovenia, Predjama Castle is carved into a 400-foot cliffside with nine miles of complex tunnels beneath it — that once helped a local 'Robin Hood' to evade capture.

For most of his life, Grizzly Adams was a very different man from the rugged bear-loving forester he marketed himself as.

A fun-loving fertility deity honored in multiple Southwestern Native American tribes, Kokopelli's image has recently been commodified to sell shirts, outdoor gear, and beer.

The 2,000-year-old funerary bed was incredibly well-preserved — a rarity for wooden objects from the Roman period.

In a lengthy YouTube video, 32-year-old Justin Mohn ranted about the Biden administration and the "woke mob" before displaying his father's head in a plastic bag.

First mentioned by Plato in Timaeus and Critias, the lost city of Atlantis later became a widely debated topic among historians. But is Atlantis real?

New sonar images from Deep Sea Vision show a plane-shaped object on the floor of the Pacific Ocean — and it could be Amelia Earhart's Lockheed Electra.

Just over 1,500 feet long and with a gross tonnage of 260,941 tons, the Seawise Giant — later renamed the Happy Giant, Jahre Viking, and Knock Nevis — was the biggest ship in the world.

Booralana nickorum was discovered 1,800 feet beneath the surface of the Exuma Sound off the coast of the Bahamas.

Paula Sladewski was just 26 years old when she was found burned beyond recognition in a Miami dumpster in 2010 — and her killer has never been identified.

The burials at the cemetery near the western Ukrainian village of Ostriv displayed a puzzling mix of Kyivan and Baltic customs.