and one features a John O'Leary photographic exhibit of the city's religious festivals. Lastly, the facility also contains restorations laboratories run by UDLAP. The basis of the collection was a group of 1,500 artifacts donated by Omar Jimenez. The main archeological attraction, the Great Pyramid of Cholula is actually in the municipality of San Andrés Cholula, marking where that part of the city begins. However, 154 hectares of the entire city have been declared archeological heritage. It is strongly believed that the Quetzalcoatl Temple lies beneath the San Gabriel monastery, but no excavations have been done on the site. Most excavations in San Pedro have been under streets and other public areas, especially when there has been construction, such as the laying of water pipes. However, there is widespread opposition to excavation in most of the zone, mostly because most of the land is privately owned. More evident in San Pedro is a large number of Cholula's many churches. According to legend, Hernán Cortés promised to build one church here for every day of the year or for every pre Hispanic temple destroyed after the Cholula Massacre. In reality, there are only 37 for the entire city, 159, if all the chapels on surrounded haciendas and ranches are counted. The architectural styles of the churches vary from Gothic to Renaissance to Churrigueresque and Neoclassical, with many mixing elements of two or more styles. A number also have Talavera tile as a decorative feature, which is common in Puebla. A few have intricate stucco work done by indigenous hands. The city's churches contain more than 300 works of art, together valued at millions of dollars. However, due to increases in the theft of religious art, many churches have implemented extra security measures and some have stopped opening during the week. The most important religious institution in San Pedro, and the second most important after the Sanctuary of the Virgen de los Remedios on the Great Pyramid, is the San Gabriel monastery. This monastery was established over the site of the destroyed Quetzalcoatl Temple in 1529 and one of the largest Franciscan friaries in Mexico. It was established first in the city, because this was the power center and the Franciscans had a limited number of monks in Mexico. The complex consists of a large atrium, a main church, a cloister area, and two important chapels which face the atrium area. Its