Located in the Mausoleum of the Roman Emperor Diocletian in the Diocletian's Palace, the Saint Domnius Cathedral, locally known as the Sveti Dujam, is the city’s main Catholic cathedral and the seat of the Archdiocese of Split-Makarska. Built in the 7th century AD, St. Domnius Cathedral is the oldest Catholic cathedral in the world and blends ancient pagan, Christian Medieval and modern heritage. The Cathedral has a stunning interior with red granite Corinthian pillars, reliefs of hunting erots, masks, and human heads, and a cupola lined with glittering mosaics. The Cathedral’s 190-foot bell tower was added in the 13th century, and visitors can climb to the top for breathtaking views over the city.

Cathedral of Saint Domnius, Ul. Kraj Svetog Duje 5, 21000, Split, Croatia

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