Church of San Francisco Xavier (Templo de San Francisco Xavier) is between avs. Benito Juárez and Insurgentes, facing the main plaza. It was founded by the Jesuits in the late 16th century, serving as a seminary for the religious training of the children of Otomí Indians. The richly detailed stone carvings of angels and saints on the building's facade—a masterful example of Mexican baroque architecture—reflect the Jesuit order's wealth and influence.
A tree-lined atrium leads to the Aljibes Cloister (Claustro de Los Aljibes), which contains paintings by Miguel Cabrera. The interior is filled with gold gilt, carvings of cherubs and saints, and five extravagant altarpieces. A highlight is the Camarín de la Virgen, or altar room, behind the Chapel of the Virgin of Loreto (Capilla de la Virgen de Loreto). This small, octagonal-shaped chamber is a jewel box of intricate interior design.
Outside the Orange Cloister (Claustro de Los Naranjos), planted with orange trees, are carefully tended gardens.