9 GREATEST UNSOLVED MYSTERIES OF ANCIENT HISTORY | History Countdown

Some mysteries we may never find the answer to, but some are begging to be solved! From secret sunken cities to unknown texts, discover the 9 greatest unsolved mysteries of ancient history - in this episode of History Countdown. Join us as we explain the wildest, weirdest, most shocking moments of all time in History Countdown - https://histv.co/countdown #HistoryCountdown Interested in learning more about the food empires that have shaped our country? Check out the new season of The Food That Built America with new episodes Sundays at 9/8c on The History Channel. Subscribe for more History Countdown and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Learn more about The HISTORY Channel and watch full episodes on our site: https://history.com 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 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.