Teotihuacan

Teotihuacan (Spanish: Teotihuacán) (Spanish pronunciation: [teotiwa'kan] (listen); modern Nahuatl pronunciation ) is an ancient Mesoamerican city located in a sub-valley of the Valley of Mexico, which is located in the State of Mexico, 40 kilometers (25 mi) northeast of modern-day Mexico City. Teotihuacan is known today as the site of many of the most architecturally significant Mesoamerican pyramids built in the pre-Columbian Americas.

The Pyramid of the Sun is the largest building in Teotihuacan, and one of the largest in Mesoamerica. It is believed to have been constructed about 200 AD. Found along the Avenue of the Dead, in between the Pyramid of the Moon and the Ciudadela, and in the shadow of the mountain Cerro Gordo, the pyramid is part of a large complex in the heart of the city.

The Pyramid of the Moon is the second largest pyramid in modern-day San Juan Teotihuacán, Mexico, after the Pyramid of the Sun. It is located in the western part of the ancient city of Teotihuacan and mimics the contours of the mountain Cerro Gordo, just north of the site. Cerro Gordo may have been called Tenan, which in Nahuatl, means "mother or protective stone." The Pyramid of the Moon covers a structure older than the Pyramid of the Sun which existed prior to 200 AD.

The Temple of the Feathered Serpent is the third largest pyramid at Teotihuacan, a pre-Columbian site in central Mexico (the term Teotihuacan, or Teotihuacano, is also used for the whole civilization and cultural complex associated with the site). This structure is notable partly due to the discovery in the 1980s of more than a hundred possibly sacrificial victims found buried beneath the structure.

Teotihuacán is a municipality located in the State of Mexico. The municipal seat is the town of Teotihuacán de Arista. It is in the northeast of the Valley of Mexico, 45 km northeast of Mexico City and 119 km from the state capital of Toluca. Teotihuacan takes its name from the ancient city and World Heritage site that is located next to the municipal seat.

The Quetzalpapálotl complex are ruins located in Teotihuacán. The complex is best known for the Palace of Quetzalpapálotl (Spanish: Palacio de Quetzalpapálotl) and the stone reliefs in its courtyard. Adjacent structures house surviving murals. The main entrance faces the Avenue of the Dead and is southwest of the Pyramid of the Moon.