The Mezquita (Spanish for "mosque") of Cordoba is a Roman Catholic cathedral and former mosque situated in the Andalusian city of Córdoba, Spain. Under the rule of Islam, it was built as the second-largest mosque in the world, and is perhaps the most accomplished monument of the Umayyad dynasty of Cordoba.
After the Spanish Reconquista, it was transformed into a church, and some of the Islamic columns and arches were replaced by a basilica in early Baroque style. Today it houses the main church of the diocese of Cordoba in Spain.
View a video of the Great Mosque of Cordoba