Determined to alleviate his father's arthritis, Felix Hoffmann made a pain reliever that was safe for everyday use. But then he synthesized something far more potent.

A constant and heavy mist hides lush treasures in these rare and magnificent forests in the clouds.

Over the course of two days in April 1977, four teenagers in the idyllic town of Dover, Mass. witnessed a horrifying, alien creature. But before they could find an explanation, the Dover Demon disappeared.

Einstein had just finished honoring his friends Lucille Ball and Desi Arnaz in front of a live audience when he collapsed of a massive heart attack onstage.

Stevie Ray Vaughan is often credited with reviving blues guitar in his heyday, but his spectacular musical career was cut short by a tragic helicopter accident when he was just 35.

Ivan Sidorenko, originally an artist, taught himself how to be a sniper for the Red Army. Turns out his true talent lay in the art of killing.

Ursula Haverbeck is now finally behind bars after years of making proclamations like "The Holocaust is the biggest and most sustainable lie in history."

Madalyn Murray O'Hair waged a 30-year-long war against religion in America, a battle that had her dubbed as 'The Most Hated Woman In America' by Life Magazine.

Erich Hartmann became Germany's top ace in just three short years with more than 350 aerial victories. His streak remains the deadliest in history.

Okunoshima was once used as a top-secret location for chemical weapons testing. All that remains today are thousands of feral rabbits, whose lives may still be in grave danger.

Though only 25-years-old when he died, Manfred von Richthofen downed more than 80 enemy planes in two short years of World War I, which earned him the formidable title of Red Baron.