Yoshie Shiratori became known as the "man no prison could hold" after he escaped four different times — once using little more than miso soup.

Even after discovering that their new recruit was a woman in disguise, the Serbian Army allowed Milunka Savić to keep fighting because she was just that good on the battlefield.

From 1765 to 1996, Ireland’s laundry institutions claimed to help vulnerable women and girls. Instead, they forced them into prison-like conditions.

In gritty 1970s New York, an unidentified serial killer known as "Charlie Chop-Off" targeted young Black and Puerto Rican boys and viciously mutilated their genitals — and he was never caught.

In August 1977, scientists at Ohio State University’s Big Ear radio telescope detected a 72-second signal from space that was extremely difficult to explain.

The Panjandrum was supposed to change the course of the war for the British and help the Allies on D-Day. Instead, it almost took out a dog.

In the early 1970s, the Alphabet Murderer stalked Rochester, New York, killing girls who had the same first and last initial – and these horrific crimes remain unsolved to this day.

The "Mad Gasser of Mattoon" allegedly attacked more than two dozen Illinois townspeople in 1944, but many now believe this disturbing episode was actually a case of mass hysteria.

Li Ching-Yuen was reportedly 256 years old when he died in 1933, though genetics experts say that's "impossible."

The founder of Gangster Disciples, Chicago gang leader "King Larry" Hoover only grew his empire after he was sentenced to prison in 1973.

From the Chapel of Bones to the Empire of the Dead, explore some of the spookiest catacombs on Earth with these eerie images.