Aqueduct of Segovia June 30, 2015Posted by cantueso in history.
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Aqueduct of Segovia, Spain, published by Bernard Gagnon under GNU Free Documentation License at
There had been aqueducts in ancient civilizations in India and the Middle East. There was one in Nineveh 50 miles long, and the Aztecs had one, too.
The stones are all sculpted and set up without mortar.
The idea was to bring water from distant mountains to some city or town.