Mosque–Cathedral of Córdoba construction of the Great Mosque, which was considerably expanded by later Muslim rulers. Córdoba returned to Christian rule in 1236 during the Reconquista, and the building was converted to a Roman Catholic church, culminating in the insertion of a Renaissance cathedral nave in the 16th century. Since the early 2000s, Spanish Muslims have lobbied the Roman Catholic Church to allow them to pray in the cathedral. This Muslim campaign has been rejected on multiple occasions, both by the church authorities in Spain and by the Vatican. It is commonly believed that the site of the Mosque-Cathedral was originally a Christian
Roman Catholic Diocese of Monterey in California the oldest stone building and the first cathedral in California, the Cathedral of San Carlos Borromeo . Roman Catholic Diocese of Monterey in California The Roman Catholic Diocese of Monterey in California () is an ecclesiastical territory or diocese in the United States of the Latin Rite of the Roman Catholic Church in the Central Coast region of California. It comprises Monterey, San Benito, San Luis Obispo, and Santa Cruz counties. The diocese is led by an ordinary bishop; the bishop's cathedra is located at the Cathedral of San Carlos Borromeo, the mother church of the diocese, in Monterey, California.