Girona Cathedral, also known as the Cathedral of Saint Mary of 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 in Rome.