Ancient Megastructures

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Original run: 26 Mar 2011 – 7 May 2011

Country of origin: US

Genre: History, Housing/Building

Network: National Geographic Channel US

Watched by: 50 of 616 249 0.01%

Total running time: 7 hours 3 minutes

Episode duration: 47 minutes

MyShows rating: 4.06 of 5 16


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