Mosque–Cathedral of Córdoba
The Mosque–Cathedral of Córdoba, is the cathedral of the Roman Catholic Diocese of Córdoba. Due to its status as a former Islamic Mosque, it is also known as the Mezquita. The original structure was built by the Umayyad ruler ʿAbd ar-Raḥmān I in 784–786 with extensions in the 9th and 10th centuries that doubled its size, ultimately making it one of the largest sacred buildings in the Islamic world.