Known as the "silent twins," June and Jennifer Gibbons barely talked to anyone except each other — for nearly 30 years. But then, one twin died under mysterious circumstances.

From Ed Gein's furniture upholstered in human skin to Edmund Kemper's garden of severed heads, these photos reveal the true horrors of history's worst killers.

Stephan Bibrowski became a popular sideshow in the Barnum & Bailey Circus who reportedly enjoyed life as a performer, but his talents lay far beyond his thick layer of hair.

Whether it's the anatomy of a cucumber or the skull of a sunfish, these incredible illustrations captured the natural world before the advent of modern photography.

Instagram artist Becca Saladin transforms famous faces from the past into modern-day people — and the results are stunning.

For 4,000 years, people in western Mongolia have used eagles to hunt small mammals — though only 10 women still uphold the practice.

A young boy's passion — and his distraction in school — ended up turning into the job of his young lifetime.

As serial killer Henry Lee Lucas’ confessions began to unravel, police became less confident that he was responsible for most of his alleged crimes — including the 1979 murder of Tammy Jo Alexander.

Even after a cancer diagnosis, hip surgery, and 14 stitches to the head, Jimmy Carter hasn't let age or illness keep him from building houses with Habitat for Humanity.

Brush up on your knowledge of the 39th president of the United States with these little-known Jimmy Carter facts.

Like Don Corleone, Frank Costello held power over politicians, refused to deal drugs, and survived an assassination attempt that came extremely close to ending his life.