1. Chichen Itza The Mayan civilization flourished from roughly 250AD to somewhere around 900AD. They created a sophisticated written language and left behind many magnificent works of architecture. The Mayan people made a number of notable achievements in Astronomy, and built monuments that commemorated celestial happenings. Examples of these monuments can be found among the ruins of Chichen Itza, an ancient Mayan city located in Southeastern Mexico. The Chichen Itza complex ...
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