Confirmed in 2017 to be the oldest known fossils on Earth, these prehistoric bacteria from Western Australia are 3.5 billion years old. But some believe that there are even older fossils waiting to be discovered.

Because it's too dangerous to retrieve the hundreds of dead bodies on Mount Everest's icy slopes, most climbers remain right where they fell when they were trying to summit Earth's tallest peak.

The gloves, though not a matching set, are the first of their kind to ever be discovered.

The brain was boiled, dried, and preserved during the Bronze Age in present day western Turkey.

There are only five living members of the Hitler family. If they have their way, the family bloodline will stop with them.

Tim McLean was sleeping against the bus window when Vince Li pulled out a knife and began stabbing him because the voice of God purportedly told him the 22-year-old stranger was a "force of evil" and an alien who needed to be destroyed.

Born Ricardo Leyva Muñoz Ramirez, Richard Ramirez became infamous as the "Night Stalker" after killing 13 people across California between 1984 and 1985.

One of the worst serial killers in American history, John Wayne Gacy performed as "Pogo the Clown" by day and murdered young men and boys by night.

Lyudmila Pavlichenko was 24 years old when she joined the Red Army during World War II. Within a year, she was the deadliest female sniper in history.

On September 26, 1983, Soviet officer Stanislav Petrov was on duty monitoring a warning system for nuclear attacks when his computer alerted him that the United States had just launched five missiles toward the U.S.S.R. — and he had only moments to decide if it was a false alarm.

Described as a reptilian creature with spines along its back, the Chupacabra is a legendary creature of the American Southwest known for attacking livestock and drinking their blood.