Whether it's ghosts, aliens, or cryptids, these creepy real-life stories represent the scariest tales from the annals of human history.

These photos of the Dyatlov Pass Incident document the days leading up to the mysterious deaths of nine young hikers — and the investigation into their gruesome deaths.

From the conman who invented the Ponzi scheme to the modern scam artist who built a multi-billion-dollar company on a fake medical breakthrough, these are history's most conniving grifters.

Discover some of the ocean's weirdest creatures, from the parasitic anglerfish to the ogreish goblin shark — indeed, you'll be glad that these scary ocean animals don't live on land.

On July 13, 1954, 47-year-old Frida Kahlo died at her home in Mexico City, but certain details have some convinced that the real cause of her death was covered up.

Under the Nazi occupation of France, the Jewish-owned Parisian furniture store Lévitan was converted into a work camp where some 800 Jewish prisoners were held.

The freezing environment preserved some of the penguins so well that they still had feathers attached to them.

From the Civil War to World War II, these remarkable Black heroes from American history fought for their country — even when they didn't have equal rights at home.

Marilyn Monroe's mother Gladys Pearl Baker was a single woman living with paranoid schizophrenia when she gave birth to the future icon, and their relationship remained strained until Monroe's sudden death.

David Reimer was born a boy in Winnipeg, Canada in 1965 — but following a botched circumcision at the age of eight months, his parents raised him as a girl.

Though lauded by the international community for his openness about the causes of the Chernobyl disaster, Valery Legasov became alienated in the Soviet scientific community and died by suicide two years after the infamous nuclear meltdown.

In July 1184, a group of European nobles gathered in a church to settle a land dispute when the floor suddenly collapsed under their weight — sending them into a cesspool below.