Sevilla Cathedral Seville Cathedral Sevilla Cathedral is a must-visit attraction in Seville. There are many tourists. If you don't want to queue, it is recommended to go early. The Cathedral of Seville is the third largest in the world, originally a mosque, but later converted to a Catholic church, with a mix of Gothic and Islamic styles. The main altar, chapel, all the rooms around the corridor, the sacrament room and other magnificent, the dome is extremely high, the majestic, the stained glass windows are also very beautiful. There is also a Columbus coffin. Walking to the towering towers of the church offers panoramic views of Seville and deafening bells.