The Sullivan brothers enlisted in the Navy on the condition that they be kept together — then all five siblings were killed in action when the USS Juneau was destroyed by the Japanese on November 13, 1942.

The African ruler of the Mali Empire in the 14th century, Mansa Musa was one of the richest people in history with a net worth of over $400 billion by some estimates.

Commenters on social media suggested that the object could be a sled, a wagon, or even part of an early airplane, but archaeologists aren't sure of its purpose at the moment.

The dime, which is one of only two known to exist in the world, was kept by a collector in a bank vault for 46 years.

From selling artwork to allegedly manipulating cellmates, Jodi Arias has gained an infamous reputation in prison.

James Earl Ray pleaded guilty to assassinating Martin Luther King Jr. — then he quickly recanted his confession and claimed there was a conspiracy.

It's long been believed that the ancient city of Mitla in Mexico sat over tunnels to the underworld — and archaeologists are getting closer to proving that such tunnels actually exist.

Step inside the most terrifying haunted forests in the world, eerie woodlands allegedly home to everything from ghosts to cryptids to UFOs.

Dating back 2,000 years, this Maya metropolis contained 6,674 structures, including pyramid temples, amphitheaters, and a reservoir.

From 1967 to 1980, serial killer Richard Cottingham prowled New York and New Jersey for victims — and he later claimed to have murdered 100 women.

This rare Copper Age dagger as well as other artifacts unearthed at the site suggest that Tina Jama cave was frequented by ancient people for thousands of years.