Teopanzolco is an archaeological site located in the state of Morelos, Mexico. It was an important center for the Tlahuica people, who were part of the larger Nahua culture. The site features several pyramids and temples, with the most notable being the Pyramid of the Sun, which showcases the architectural style of the region. The site dates back to the Postclassic period of Mesoamerican history, around the 12th century. It is believed that Teopanzolco served as a religious and ceremonial center, where various rituals and offerings took place. Today, it is a popular destination for tourists and researchers interested in ancient Mesoamerican civilizations.