Watch all new episodes of Ancient Aliens returning soon, and stay up to date on all of your favorite History Channel shows at history.com/schedule. Northern Italy is a renowned hotspot of UFO activity. Could secret alien bases be hidden throughout the Italian Alps? Ancient Astronaut Theorists say "yes," in this clip from Season 14, "The Alien Mountain." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: histv.co/SubscribeToHistory Find out more about the show and watch full episodes on our site: histv.co/AncientAliens Check out exclusive HISTORY content: History Newsletter - histv.co/newsletter Website - histv.co/History Facebook - histv.co/Facebook Twitter - 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.

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