Teotihuacan is a sacred archaeological site in the Basin of Mexico about 30 miles northeast from Mexico City. The ancient city of Teotihuacan was built about AD 200. Teotihuacan is known for its large residential complexes, the Avenue of the Dead, and numerous colorful, well-preserved murals and as one of the seven wonders too.
It is considered that Teotihuacan is a multi-ethnic city as it has been occupied by Otomi, Maya, Mixtec, Zapotec and Nahua peoples. Either the Totonacs or the Aztecs have always maintained that they were the ones who built it but it has not been corroborated by archaeological findings.
2.5 km long Avenue of the Dead is the main street of Teotihuacan. It begins at the Moon Plaza to the north and extending beyond the Ciudadela and the Great Compound complexes to the south. The Pyramid of the Sun the majesty of the Street of the Dead and it is the third largest pyramid in the world and the Ciudadela is a huge enclosure located at the geographic center of the city.