Ciudad Universitaria, Mexico City

Ciudad Universitaria (University City) is the main campus of the National Autonomous University of Mexico (UNAM), located in Coyoacán borough in the southern part of Mexico City. Designed by architects Mario Pani and Enrique del Moral, it encloses the Olympic Stadium, about 40 faculties and institutes, the Cultural Center, an ecological reserve, the Central Library, and a few museums. It was built during the 1950s on an ancient solidified lava bed in Coyoacán called "El Pedregal" to replace the scattered buildings in downtown Mexico City where classes were given. It was completed in 1954 at a cost of approximately $25 million. At the time of its completion it was the largest single construction project in Mexico since the Aztecs. It was declared a World Heritage Site by UNESCO in 2007.

Although the University has other buildings in Mexico City (mostly for undergraduate studies and cultural purposes), in other Mexican states and in other countries (such as Canada and the United States), Ciudad Universitaria, known simply as "C.U.", is the prime symbol of the University.