Cathedral of Saint Domnius

"Split’s octagonal cathedral is one of the best-preserved ancient Roman buildings standing today. " Full review

"St Domnius Cathedral stands on the ruins of the old octagonal Diocletian mausoleum (transformed into a church in the 7C)." Full review

"The main body of this cathedral is the 3rd-century octagonal mausoleum designed as a shrine to Emperor Diocletian" Full review

"The main body of the cathedral was originally built in Roman times as Diocletian’s mausoleum." Full review