Ancient Aliens: AREA 51 MILITARY TUNNELS (Season 13) | History

Watch new episodes of Ancient Aliens returning Friday Jan 24, at 10/9c, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Has the U.S. Military been digging a network of tunnels under Area 51 to conduct secret experiments? Ancient astronaut theorists say YES, in this clip from Season 13, "Area 52." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our site: http://po.st/AncientAliens Check out exclusive HISTORY content: History Newsletter: http://po.st/HistoryNewsletter Website - http://po.st/HistoryWeb Facebook - http://po.st/HistoryFacebook Twitter - http://po.st/HistoryTwitter 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.