Could the pyramids around the globe be somehow interconnected? See more in this scene from Season 2, Episode 11, "Extraterrestrial Pyramids." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows on The HISTORY Channel website at ...

Could it really be that these otherworldly visitors coexist among us, crossing over from unseen dimensions into our world? Find out in this video from Season 2, Episode 12, "ALIENS AND THE UNSEEN." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your ...

Are hybrids like the Centaur, the Minotaur and Medusa just mythical creatures of fantasy--or could these ancient depictions of terrifying monsters have been the result of advanced extraterrestrial transplantation procedures? See more in this scene from Season 3, Episode 2, "Aliens and ...