The Cathedral and former Great Mosque of Córdoba, in ecclesiastical terms the Catedral de Nuestra Señora de la Asunción (English: Cathedral of Our Lady of the Assumption), and known by the inhabitants of Córdoba as the Mezquita-Catedral (Mosque–Cathedral), is today a World Heritage Site and the cathedral of the Diocese of Córdoba. It is located in the Andalusian city of Córdoba, Spain. The site was originally a pagan temple, then a Visigothic Christian church, before the Umayyad Moors at first converted the building into a mosque and then built a new mosque on the site. After the Spanish Reconquista, it once again became a Roman Catholic church, with a plateresque cathedral later inserted into the centre of the large Moorish building. The Mezquita is regarded as the one of the most accomplished monuments of Islamic architecture.