Are sacred places the product of man's reverence for God--or the result of contact with ancient space travelers? See more in this scene from Season 3, Episode 3, "Aliens and Sacred Places." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite ...

Billionaire establishes a grant for one of the largest studies of crop circles in history. See more in this scene from Season 19, Episode 2, "The Crop Circle Code." Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at ...

On New Year's Eve, 1982, several witnesses claim they saw UFO's in the sky, in this scene from Season 19, Episode 1, "UFO Hotspots." Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. #AncientAliens ...

These shocking UFOs have been spotted over some of the biggest cities in the U.S. See more in this compilation from The Proof is Out There. #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great shows from The UnXplained Zone: ...

These mysterious formations have been appearing in farmer's fields for centuries. See more in this scene from Season 19, Episode 2, "The Crop Circle Code." Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. ...

These top 5 UFO sightings are so out of the ordinary that it's difficult to make sense of them, check them out in this The Proof Is Out There compilation. #TheProofIsOutThere Subscribe for more from The Proof Is Out There and other great shows from The UnXplained Zone: ...

The earth's climate is rapidly changing and these changes will have a devastating effect, see more in this clip from Mega Disasters. #MegaDisasters Subscribe for more from Mega Disasters and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Check out exclusive The ...

Ehemalige Regierungsinsider tun sich bei Ancient Aliens zusammen, um aufzudecken, was die Regierung über UFOs weiß. Auch dabei: Viele Experten wie Wissenschaftler und Fachleute für Religionsgeschichte. Sie erforschen alles von den menschlichen Ursprüngen bis hin zu bahnbrechenden ...

Ehemalige Regierungsinsider tun sich zusammen, um aufzudecken, was die Regierung über UFOs weiß. Auch dabei: Viele Experten wie Wissenschaftler und Fachleute für Religionsgeschichte. Sie erforschen alles von den menschlichen Ursprüngen bis hin zu bahnbrechenden archäologischen Funden, neuen ...

Ancient Astronaut Theorists believe that the Rudston Monolith possesses unusual powers that spark strange phenomenons, in this clip from Season 17, "Mystery Of the Standing Stones." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: ...

Go to https://expressvpn.com/UniverseInsideYou and find out how you can get 3 months of ExpressVPN free! If you're fascinated by the wonders and mysteries of archaeology, you've no doubt come across stories of strange skulls that have been unearthed around the world. Many of these skulls look ...