A terrifying cryptid with the head of a dog, the body of a man, and a bone-chilling scream, the Michigan Dogman is said to prowl the forests of northern Michigan.

The 6,000-foot mountaintop once held temples, the homes of rulers, and a games court.

From 1974 to 1986, an ex-cop named Joseph DeAngelo terrorized California as the Golden State Killer — and lived a normal family life for decades before being caught.

Vito Genovese rose through New York's criminal underworld during Prohibition and eventually became a Mafia boss before the fallout of the Apalachin meeting ended his reign.

After two failed inquiries in 1947 and 1963, a team of investigators believes that a Jewish notary betrayed Anne Frank's hiding place to protect his family from deportation.

Though some believe that an alien craft called the Black Knight Satellite is orbiting Earth, NASA says that any photographic "proof" merely depicts space junk.

"It’s a known legend, people know that it’s still out there in deep water. Everyone will be after it, won’t they?"

A Norse explorer from Iceland, Leif Erikson is believed to be the first European to reach North America around 1000 A.D. This is his story.

By the time of Al Capone's death, the 48-year-old had deteriorated so severely from the advanced syphilis ravaging his brain that he had the mental capacity of a 12-year-old.

Although Louis Zamperini was brutally tortured inside four Japanese POW camps during World War 2, he not only survived, he later forgave his captors.

What are Skinwalkers, the shapeshifting witches of Navajo lore, and are they actually real? Inside the mystery of these mythical beasts.