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Cities of the Sky

Season 1 Episode 3

About the Episode

Discover the cosmological secrets behind America’s ancient cities. Scientists explore some of the world’s largest pyramids and 3D-scan a lost city of monumental mounds on the Mississippi River; native elders reveal ancient powers of the sky.

Aired: 11/12/18 | Expires: 10/05/21 | Runtime: 53m 30s
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