For thousands of years, Scotland has been an epicenter of otherworldly phenomena. See more in Season 20, Episode 9, "Mysteries of Scotland." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from ...

Mysterious places can be found around the Earth, and, inexplicably, UFOs are often sighted near these mystical areas. See more in Season 2, Episode 1, "Mysterious Places." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. ...

Throughout the world there are mysterious ancient stones shaped into perfect spheres. Many of them show clear evidence of being manmade and some completely defy explanation. Could the mystery of the stone spheres provide clues about humankind's alien past? See more in this scene from Season 20, ...

These mysteries will blow your mind. Check them out in this compilation from Ancient Aliens. Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel ...

Throughout the world there are mysterious ancient stones shaped into perfect spheres. Many of them show clear evidence of being manmade and some completely defy explanation. Could the mystery of the stone spheres provide clues about humankind's alien past? See more in Season 20, Episode 10, ...

If extraterrestrials influenced human history, can evidence of their existence be found in hidden tunnels and caverns around the world? See more in Season 2, Episode 4, "Underground Aliens." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at ...

These colossal statues are more than just statues, they may have connections to another world. See more in this scene from Season 2, Episode 10, "Alien Effigies." 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 ...

Discover Antarctica's secret past in this compilation from Ancient Aliens. Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: ...

Here's The REAL REASON Why ALIENS Haven't Been Found Yet Subscribe To Most Amazing Top 10: http://bit.ly/2Ibyk6i Most Recent Videos: https://www.youtube.com/watch?v=Pj2rni0BfKo&list=UUBINYCmwE29fBXCpUI8DgTA 👽 Curious about why we haven't found aliens yet? 🌌 Join us as we dive into the REAL ...

Across the globe, monumental stone figures silently bear witness to a forgotten era. See more in Season 2, Episode 10, "Alien Effigies." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from ...

Across the globe, there are remarkable ruins, statues and carvings that appear to connect diverse ancient civilizations to one another. See more in Season 1, Episode 12, "The Global Connection." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your ...

Unlock the secrets of ancient wisdom and enigmatic civilization in this Ancient Aliens compilation. 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 http://history.com/schedule. #AncientAliens ...