From the "Giggling Granny" to the "Toy Box Killer," these brutal murderers number among history's most disturbingly prolific serial killers.

The chilling story of the Sodder children, who vanished after their West Virginia home went up in flames in 1945, leaves more questions than answers.

Whether gorgeous or terrifying, these Native American masks reveal a group of cultures on the verge of disappearing forever.

These rarely-seen pictures of President John F. Kennedy's assassination, autopsy, and funeral reveal the full story of the shooting that shook the nation in Dallas, Texas on November 22, 1963.

These heart-rending, life-affirming Anne Frank quotes and photos can teach us all about courage and reveal that hope is always possible.

From royal courts of Renaissance Europe to rock stars of the 1960s, these infamous cases of incest will make your skin crawl.

Learn about the ten richest people ever — and see if you can even wrap your head around fortunes that dwarf that of Bill Gates.

These heartbreaking Jacob Riis photographs from How the Other Half Lives and elsewhere changed America forever.

In an attempt to understand a non-white life in America, John Griffin dyed his skin "black" and set off to the South. His experience, recounted in Black Like Me was, as you might expect, painful.

Ever since tales of Tantric sex reached the West, many have attempted to understand Tantra — and have gotten it very wrong.

From his champion wrestling career to the eerie circumstances of his assassination, these facts about Abraham Lincoln may change the way you see the 16th president.