Eleven of the twelve granite sphinxes that originally guarded the Peristyle have been destroyed by Christians who took exception to Egyptian imagery in their cathedral, but the twelfth remains, an imposing reminder of the original designer of the mausoleum, Diocletian. The former emperor's tomb has long since disappeared, perhaps re-used in the creation of the Christianized mausoleum. Remnants of Diocletian's rule do remain, in the form of portraits of the emperor and his wife that can be seen in the dome of the cathedral. More prominently on display are the altars to Domnius and Anastasius, the latter a Christian martyr who was killed during the reign of another enemy of early Christians, Emperor Nero. In grand historical irony, the cathedral was dedicated to one of Diocletian's victims, the first Bishop of Salona. After viewing the interior of the cathedral, you can climb the bell tower to get a lovely view of the surrounding area and the nearby port.