Girona Cathedral, also known as the Cathedral of Saint Mary of Girona (in Catalan: Catedral de Santa Maria de Girona or simply Catedral de Girona), is a Roman Catholic church located in Girona, Catalonia, Spain. It is the seat of the Roman Catholic Diocese of Girona. The cathedral's interior includes the widest Gothic nave in the world, with a width of 23 metres (75 ft), and the second-widest of any church after that of St. Peter's Basilica (for comparison, the width of the nave of Reims Cathedral is 14.65 m, Saint-Étienne de Sens, 15.25 m and 12 m, in Notre Dame de Paris). Its construction was begun in the 11th century in the Romanesque architectural style, and continued in the 13th century in the Gothic style. Of the original Romanesque edifice only the 12th-century cloister and a bell tower remain. The second bell tower was completed in the 18th century.