Ancient Aliens: Top 3 Unbelievable UFOs & Alien Devices (Season 19)

These clips of mysterious flying crafts will blow your mind. See more in this clip from Season 19, Episode 14, "The Top Ten Alien Craft." 00:43 Palaces in the Sky 03:06 Cigar-Shaped Craft 07:21 Flying Saucers #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 "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years. HISTORY® 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.