John Marks

Tracing the history of blue jeans around the globe.

Uncovering government agencies (especially the CIA) that secretly tested the effects of LSD on humans.

Delve into the secret underworld of the American Mafia, as told by the criminals who lived it and the law enforcers who hunted it. This dramatic six-part series chronicles the true-life story of the modern Mob in America, as former mobsters, informants, and FBI agents expose the takedown of the deadliest and most infamous organized crime ring in U.S. history. A combination of recently declassified files, first-person accounts by federal officials and the mafioso themselves, and rare archival footage sheds a new light on the raw, violent, and corrupt underworld that gripped America for decades.

Brothers Jim and Bill Vieira search for giant skeletons after researching tales of giants being sighted along with old accounts of giant bones being uncovered across the country.

Explore how the United States expanded from a fragile experiment along the Atlantic coast into a nation spanning an entire continent, revealing extraordinary sacrifices and untold personal accounts that dramatically reframe the story.

Examining the life and times of Adolf Hitler and following the full arc of his ascent, tyrannical reign, criminality and undoing.