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Mayan roads are still in use
Their cities were connected by a network of roads some of which are still in use. Some of the most important cities were Comalcalco, Palenque, Copan, Altun Ha, Calakmul, Uaxactún and Quiriguá and Tikal. In Mayan empire during classic period (c. 250–900 AD) lived about 2,000,000 people. The largest and most luxurious city of Tikal had between 75.000 to 100.000 inhabitants.
