Unsolved Mysteries of Lost Civilizations | Ancient Top 10 (S1, E4) | Full Episode

Think you know the ancient world? Think again. To this day, there are still mysteries surrounding the ancients that have us questioning what we know about these incredible civilizations. See more in Season 1, Episode 4, "Ancient Mysteries." #AncientTop10 Subscribe for more from Ancient Top 10 and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Check out exclusive The HISTORY Channel content: History Newsletter: www.history.com/newsletter Website - http://www.history.com Facebook - https://www.facebook.com/History Twitter - https://twitter.com/history 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.