Cuicuilco: A Round Pyramind destroyed by a Volcano

Located in the middle of Mexico City and formerly situated on the edge of Lake Texcoco, Cuicuilco is one of the oldest settlements in the region of Central Mexico. It was home to a civilization that worshipped volcanoes, and when it was ultimately destroyed by a volcano, the survivors fled to the city of their rivals on the other side of the lake, Teotihuacan. Although it is poorly studied, in part because most of thebsite is buried under ten meters of lava rock, it is one of the most unique and fascinating ancient sites of mesoamerica, and easy to visit if you are in México City.
Here is the video about the 3500 year old pyramid of San José Mogote:
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Here is the video about the Zapotec irrigation system:
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