
Saint Domnius Cathedral
Saint Domnius Cathedral
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Built in 305 CE, this cathedral dedicated to the citys patron saint has a Romanesque bell tower.
Last updated: February 11, 2026
Overview
Built in 305 CE, this cathedral dedicated to the citys patron saint has a Romanesque bell tower.
Opening Hours
Visitor Reviews
**★★★★★ Vadim Solodukhin — 3 months ago
The oldest Catholic cathedral in the world (consecrated at the turn of the 7th century AD) that remains in use in its original structure, without near-complete renovation at a later date. The structure itself, built in AD 305 is the Mausoleum of Diocletian. The Cathedral of St. Domnius is a complex of a church, formed from an Imperial Roman mausoleum, with a bell tower. The church is dedicated to the Virgin Mary, and the bell tower to Saint Domnius. Together they form the Cathedral of St. Domniu










