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Ancient Megastructures

Examine how ancient civilisations built some of the most magnificent structures on the face of the Earth, many centuries before the industrial revolution.

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Country: US

Studio: National Geographic

Runtime: 26:14 minutes

Quality: HD

First air date: Mar 19, 2011

Last air date: Mar 26, 2011

Episode: 9 Episode

Season: 2 Season

IMDb: 2.6

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