the image, starting on the night of the 7th, when people spend the night with small lanterns so they can greet the image early on the eighth. The other is called the "Bajada" when the image comes down the pyramid to visit the various neighborhoods of the city for two weeks in May and June. Closer to the pyramid's pre-Hispanic roots is the Quetzalcoatl ritual, which is held each year on the spring equinox. This event can draw up to 20,000 visitors, leading authorities to restrict access to the exposed archeological ruins on the south side. The ritual is performed on the pyramid with poetry, indigenous dance and music and fireworks. The pyramid site accounts for only six hectares of an archeological heritage site believed to extend over 154 hectares. However, 90 hectares of this land is privately owned, and there is resistance to major archeological exploration. Despite the ancient city's and pyramid's importance to the history of central Mexico, the pyramid has not been extensively studied and has not of yet played a significant role in the understanding of Mesoamerica. The pyramid is the main tourist attraction in Cholula, receiving 496,518 visitors in 2017. Images of this church on top of the pyramid with Popocatepetl in the background is frequently used in Mexico's promotion of tourism. It is one of the better known destinations in central Mexico for foreign travelers. The attraction consists of three parts: the tunnels inside the pyramid, the complex on the south side and the site museum. About eight km of tunnels were dug into the pyramid by archaeologists but only 800 meters are open to the public. The tunnel entrance is on the north side and it goes through the center of the structure. This tour passes by the Mural of the Drinkers, which is one of the most famous aspects of the site. The structures on the south side are dominated by the Courtyard of the Altars. Separated from the site by the Camino Real road is the site museum, which contains a model of the pyramid's layers, a room dedicated to ceramics and other finds from the site and the recreation of two of the site's murals. The pyramid's importance has led to a number of measures taken to protect it. The archaeological zone is patrolled by a police equestrian unit from the municipality of San Ándres. This to keep motor vehicles