Architectural detail of the door of the Puerta del Perdon or Door of Forgiveness, built 1377 and renovated 17th century, one of the North facade entrances to the Cathedral-Great Mosque of Cordoba, on the Calle Cardenal Herrero in Cordoba, Andalusia, Southern Spain. This is a fine example of Mamluk metalwork, with a geometric pattern of hexagonal metal plaques and stars. The first church built here by the Visigoths in the 7th century was split in half by the Moors, becoming half church, half mosque. In 784, the Great Mosque of Cordoba was begun in its place and developed over 200 years, but in 1236 it was converted into a catholic church, with a Renaissance cathedral nave built in the 16th century. The historic centre of Cordoba is listed as a UNESCO World Heritage Site. Picture by Manuel Cohen