The Cathedral of Saint Mary of Girona is the cathedral church of the Roman Catholic Diocese of Girona, located in Girona, Catalonia, Spain. Its interior includes the widest Gothic nave in the world, with a width of 22 metres, and the second widest of any church after that of St. Peter's Basilica. Its construction was begun in the 11th century in Romanesque style, and continued in the 13th century in Gothic style.