Four people were bludgeoned to death in a Los Angeles townhouse in July 1981, but the top suspects — nightclub owner Eddie Nash and male porn star John Holmes — were both acquitted, leaving the massacre a mystery.

Located in a protected area in eastern California, the Methuselah tree is almost 5,000 years old.

After he vanished from San Antonio, Texas, in 1994, Nicholas Barclay was impersonated by 23-year-old Frédéric Bourdin, who convinced Barclay's family that he was their missing son.

Saving the world isn't always about spur-of-the-moment heroics — though sometimes it is. These eight people managed to save the world in their own ways.

When a fire erupted inside the coal mine in Centralia, residents thought it would quickly burn out on its own. But the blaze is still going six decades later and the state has given up on trying to fight it.

Manson Family members Bobby Beausoleil, Mary Brunner, and Susan Atkins held musician Gary Hinman captive for two days before stabbing him to death in July 1969 — two weeks before the infamous Tate-LaBianca murders.

A founding member of the high-wire act "The Flying Wallendas," Karl Wallenda dazzled audiences with daring tightrope performances before taking a fatal fall in 1978.

After his zoning petition was repeatedly dismissed, Marvin Heemeyer decided to modify a bulldozer into a lethal "killdozer" and go on a rampage in Granby, Colorado.

Though Saving Private Ryan was fictional, it was inspired by the true story of Frederick Niland, who was sent home after his three of his brothers were believed to be killed in action.

Though he's the face of the organization, there's so much more to the Medellín Cartel than just Pablo Escobar.

While Martin Scorsese's 2002 drama about the gang wars of 19th-century Manhattan captured the violence of the feud between the Dead Rabbits and Bill the Butcher's Natives, the real Bowery Boys were even more vicious than portrayed onscreen.

Vesna Vulović was the only survivor of JAT Flight 367, which crashed on January 26, 1972, in the modern-day Czech Republic after there was an explosion in the baggage compartment.