The controversial sex-research team pioneered the field of human sexuality and introduced ideas that are still widely used today.

Krystyna Skarbek spent the war intimidating Nazi's and threatening soldiers, but when it came to a jealous lover, she was no match.

Mary Thomas lead one of the largest revolts in the Danish West Indies and was condemned to death for her role.

Ernest Withers made a name for himself as an iconic Civil Rights photographer. But, within the FBI, he made a name for himself as a reliable informant.

"Flying Man" Otto Lilienthal soared against the clouds, captivating the imaginations of people all over the globe and inspiring a future generation of engineers and inventors.

Viola Liuzzo drove from Detroit to Alabama to march with Dr. Martin Luther King Jr. She was gunned down by the KKK before she could make it home — and the FBI tried to blame her.

Baldwin IV had leprosy at a time when it was considered a death sentence as well as a ticket to social ostracism. Instead, he became the King of Jerusalem and a hero to his people.

See why treasure hunters are still drawn to Arizona's Superstition Mountains by the lure of the fabled Lost Dutchman Mine and the promise of untold riches.

Though he could have lost his job, and his life, if the government found out, Chiune Sugihara continued to risk it all to help every Jewish citizen he could.

Joseph Stalin wanted John Wayne gone so badly he sent two men to pose as FBI agents to take him down.

Despite being fake, the Scopes Trial ultimately got evolution to be taught in schools.