![Ancient Megastructures](https://image.tmdb.org/t/p/w500//vOENmfxGImObdOLmuzFzVNbYMXe.jpg)
Ancient Megastructures
84.00%
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March 19, 2011
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Documentary
Examine how ancient civilisations built some of the most magnificent structures on the face of the Earth, many centuries before the industrial revolution.
Cast
![Alisdair Simpson](https://image.tmdb.org/t/p/w300//aq5yMbrKQ9r9TokxiydPOtlL9XK.jpg)
Alisdair Simpson
Self - Narrator (voice)