Joachim Kroll, the "Ruhr Cannibal," terrorized West Germany for over 20 years, eating the flesh of his victims because "meat was expensive."

From the streets and saloons of mining towns to the ranches and cowboys out on the plains, these Old West photos capture the frontier as it truly was.

Eleven months ago, Cameron Underwood was without most of his lower jaw, his nose, and all but one of this teeth.

In 1972-1973, Herbert Mullin killed 13 people in California because he thought it could stop an earthquake. This is his chilling story.

These profound Sun Tzu quotes reveal his wisdom and explain why people are still reading "The Art of War" more than 2,500 years later.

Almost 40 years before the Holocaust, the concentration camp imprisonment and mass murder of the Herero and Nama people marked the first genocide of the 20th century.

How Petrus Gonsalvus made it into the French royal court and married Lady Catherine to live out the real Beauty and the Beast story.

A century before the American Revolution, there was Bacon's Rebellion.

At the height of the Cuban Missile Crisis, Soviet submarine commander Vasili Arkhipov had the power to decide whether or not World War III would begin. He chose wisely.

"You could look at it two ways," Frane Selak said. "I was either the unluckiest man in the world, or the luckiest. I preferred to believe the latter."

Some suspect a serial killer while others point a finger at the paranormal, but nobody has been able to fully explain the mysterious disappearances from Vermont's Bennington Triangle and Glastenbury Mountain.