Image by John Elk Getty Images

Top billing in Poreč goes to the 6th-century Euphrasian Basilica, a World Heritage Site and one of Europe’s finest intact examples of Byzantine art. Built on the site of a 4th-century oratory, the complex includes a church, an atrium and a baptistery. The glittering wall mosaics in the apse – 6th-century masterpieces featuring biblical scenes, archangels and Istrian martyrs – are the highlights.

Notice the group to the left, which shows Bishop Euphrasius, who commissioned the basilica, with a model of the church in his hand. The belfry, accessed through the octagonal baptistery, affords an invigorating view of the old town. Make sure to pop into the adjacent Bishop's Palace, which contains a display of ancient stone sculptures, religious paintings and 4th-century mosaics from the original oratory.