Along the Avenue of the Dead are many smaller constructions which the Aztecs believed were tombs, hence the name of the avenue.
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Located 30 miles northeast of Mexico City in the Valley of Mexico, Teotihuacn is one of Mexicos most popular archaeological sites and contains some of the largest pyramidal structures built in the pre-Columbian Americas.
Dating back to 100BC Teotihuacn was to become the cultural epicentre of ancient Mesoamerica.
This area was a large plaza surrounded by temples that formed the religious and political centre of the city.
The name "Citadel" was given to it by the Spanish, who believed it was a fort.
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