Teotihuacan is an enormous archaeological site in the Basin of Mexico, containing some of the largest pyramidal structures built in the pre-Columbian Americas. Apart from the pyramidal structures, Teotihuacan is also known for its large residential complexes, the Avenue of the Dead, and numerous colorful, well-preserved murals.
The site covers a total surface area of 83km² and was designated a UNESCO World Heritage Site in 1987. It is one of the most visited archaeological sites in the World.