Ancient Megastructures (2011) is a Documentary series that follows examine how ancient civilisations built some of the most magnificent structures on the face of the Earth, many centuries before the industrial revolution. Ancient Megastructures is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 8.5 out of 10 from 6 votes. Fans of documentary series may also want to explore similar titles below.