New evidence reveals the truth behind the notorious Roman emperor Caligula.

Scientists tackle an ambitious DNA project to uncover who we really are.

The city of Chichen Itza contains secrets of a mysterious civilization.

The mysterious tombs and secrets of the Great Pyramid of Giza are explored.

Experts reveal the ancient secrets of one of history's greatest empires.

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Jeremy Wade uses cutting-edge tech to investigate one of the Bermuda Triangle's greatest mysteries, and the newest evidence could point to an international conspiracy of espionage, sabotage, and and war on the United States.

A team of experts use the latest science and cutting-edge technology to investigate if extraterrestrial life has contacted humankind, and what they discover could reveal if there's an international conspiracy to cover it all up.

Sparks fly as a group of expert bot builders fight head-to-head to become BattleBots champions!

A supersized Fight Night rolls on as robots collide in five deadly smackdowns, concluding in a world class fight between two heavyweights.

Expert robot builders continue their quest to become BattleBots champions, and two legends go head-to-head in an epic showdown.

Why do we hate? Humans are capable of love and cooperation --so why do we treat each other with cruelty and violence? Evolutionary anthropologist Brian Hare searches for the origins of hate in our distant past, and in our contemporary environment.

Bees get fearless explorer Coyote Peterson's head buzzing.

Josh sets sail for Florida chasing the long-lost treasure of Jose Gaspar.

A Boomer, a Millennial and a Gen-Xer face three grizzly bears.