"The Beatles played here, the Beatles partied here, and the Beatles slept here." And now, interested travelers can stay at the former Casbah Coffee Club and experience a piece of Beatles history.

An elderly woman from Romania unwittingly used a seven-pound Rumanit amber nugget worth more than $1 million as a doorstop for decades before her death in 1991. Years later, her relatives discovered the stone's true value.

Gustav Bruunsgaard was searching a field in Elsted, Denmark, with a metal detector when he made this "spectacular" discovery that dates back to 800 C.E.

John Lennon abused and neglected his "secret" first wife Cynthia Lennon for years before he eventually left her for Yoko Ono.

New analysis of a submerged limestone bridge found in Genovesa Cave on the Mediterranean island of Mallorca suggests that humans settled on the island thousands of years before experts previously believed.

Kitty Genovese’s 1964 murder became a cautionary tale about the bystander effect — but few are familiar with the story of her killer, Winston Moseley, who claimed he attacked her because he’d developed "an uncontrollable urge to kill."

The Triangle Shirtwaist Factory fire was the deadliest workplace tragedy in the history of New York City until the terrorist attacks of September 11, 2001 — but it was completely preventable.

Sabrina Solomon was fishing at a Texas lake when she quite literally stumbled upon the remains of a 40-year-old Columbian mammoth that roamed the area 20,000 years ago.

On June 24, 2002, Kara Robinson was abducted by Richard Evonitz, who had already murdered at least three other girls — but she escaped 18 hours later, then helped police take the killer down.

From Templo Mayor in Mexico City to the Acatitlan temple in Santa Cecilia, these pyramids are marvels of Mesoamerican architecture.