Burgos Cathedral (Spanish: Catedral de Burgos) is a Gothic-style Roman Catholic cathedral in Burgos, Spain. It is dedicated to the Virgin Mary and is famous for its vast size and unique architecture. Its construction began in 1221 and it was in use as a church nine years later but work continued off and on until 1567. It was primarily built in the French Gothic style, although Renaissance style works were added in the 15th and 16th centuries. The cathedral was declared a World Heritage Site by UNESCO on October 31, 1984.