Check out the preview for Season 11 Episode 4 of Ancient Aliens, new episodes Fridays 9/8c Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our site: http://po.st/AncientAliens Check ...

Check out the preview for Season 11 Episode 5 of Ancient Aliens, new episodes Fridays 9/8c Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our site: http://po.st/AncientAliens Check ...

Check out the preview for Season 11 Episode 6 of Ancient Aliens, new episodes Fridays 9/8c Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our site: http://po.st/AncientAliens Check ...

Alan Turing created the enigma machine to break the Nazi code during WWII, but did he have help from above? Learn more in this collection of scenes from "The Visionaries." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT ...

Why is the symbol of the egg present in all cultures? Does the answer lie out in the stars, or perhaps inside our own brains? Find out in this collection of scenes from "Decoding the Cosmic Egg." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: ...

Did humanity come from the stars? Perhaps new answers can be found at Uluru/Ayers Rock in Australia. Learn more in this collection of scenes from "The Wisdom Keepers." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find ...

Who are the Mysterious Nine, and what relationship do they have to the television show "Star Trek?" Discover the group's origins in this collection of scenes from "The Mysterious Nine." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: ...

Did humanity come from the stars? Ancient drawings left behind by Australia's indigenous tribes might hold the answer. Learn more in this sneak peak from "The Wisdom Keepers." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT ...

Why is it that the number nine appears across the globe throughout history? Discover the origins of the group referred to as "The Mysterious Nine" in this preview. #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out ...

Is there a hidden city in the skies? Find out what the Chinese government could be hiding in this preview to "The Hidden Empire." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full ...

The ruins of a city found at the bottom of Fuxian Lake in China raise big questions about the country's history with extra-terrestrials in this collection of scenes from "The Hidden Empire." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: ...

15% of humans have a rare bloodtype known as Rh negative. See what experts have to say about a possible link to extraterrestrial modification of humans in this collection of scenes from "The Prototypes." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: ...