Ancient Aliens: Otherworldly Structure Found on Nan Madol (Season 15)

Ancient Astronaut Theorists uncover a 54 ton structure on Nan Madol that leads them to more questions, in this clip from Season 15, "The Mystery of Nan Madol." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our site: https://histv.co/AncientAliens Check out exclusive The HISTORY Channel content: History Newsletter - https://histv.co/newsletter Website - https://histv.co/History Facebook - https://histv.co/Facebook Twitter - https://histv.co/Twitter Watch all new episodes of Ancient Aliens, returning soon, and stay up to date on all of your favorite The HISTORY Channel shows at http://history.com/schedule. "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years. The HISTORY Channel® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming.