A successful painter who lived in Paris, Einar Wegener would undergo groundbreaking gender-affirming surgeries and live as Lili Elbe before dying in 1931.

Karla Homolka helped her husband Paul Bernardo rape and murder at least three victims between 1990 and 1992 — but she walks free today after serving just 12 years.

While Robert Kahn, Vint Cerf, and Tim Berners-Lee are rightly hailed as the inventors of the internet, the full story is much more complicated.

After serving prison time for smuggling marijuana, "Boston George" Jung graduated to cocaine and helped make Pablo Escobar the wealthiest drug lord in the world.

While her sister Anne was married to King Henry VIII of England, Mary Boleyn not only had an affair with him, she may have also bore him two children.

Because it's too dangerous to retrieve the dead bodies that litter the slopes of Mount Everest, most climbers remain right where they fell while trying to summit Earth's tallest peak.

The youngest American to serve in World War 2, Calvin Graham lied his way into the Navy at 12 years old in 1942, eventually earning the Bronze Star and the Purple Heart.

One of the seven wonders of the ancient world, the Colossus of Rhodes stood for just 54 years until it was destroyed — and its true location remains a mystery.

The embalmed body of Soviet leader Vladimir Lenin has been preserved inside a glass case at his mausoleum in Moscow since his death in 1924.

On October 5, 2003, Timothy Treadwell and his girlfriend Amie Huguenard were mauled to death by a grizzly bear — and the whole attack was caught on tape.

On a remote highway in rural Louisiana, six lawmen awaited Bonnie Parker and Clyde Barrow on the morning of May 23, 1934. When the infamous criminal duo arrived, the posse shot 130 bullets into their Ford V8.