Located 30 miles north of Mexico City, Teotihuacan (known as City of the Gods) is an archaeological site containing some of the largest pyramids in the pre-Colombian Americas. The origins of Teotihuacan remain a mystery but according to National Geographic, the Aztecs discovered the pyramids and gave it the name Teotihuacan. According to the Met Museum, Teotihuacan was once one of the ancient world’s largest cities.
Teotihuacán is certainly a site to behold and is a must see during a trip to the Mexico City area. It is not as well visited as those in the Yucatán Peninsula (Calakmul and Chichén Itzá) which means that the crowds are much smaller. The climb up is about 10-15 minutes and there is a nice breeze and a beautiful view at the top.
Bus: From Mexico City, you can take a bus from Terminal Central del Norte (Metro Station: Autobuses del Norte) . As of February 2013,a one-way ticket from Mexico City to Teotihuacán (Zona Arqueologica) costs MX$40 (~$3 USD) .
Tour: There are several half- and full-day tours to Teotihuacán from Mexico City.
As of February 2013, the cost to enter Teotihuacán is MX $57 (~$4.50 USD).
*Update (March 2014): Mexico’s Pyramid of the Sun is Slowly Turning Into a Pile of Dust