Cathedral of St. Domnius, Split (must see)

In 305 AD, Emperor Diocletian, known for his brutal persecution of Christians, retired to sunny Dalmatia to cultivate cabbages and built himself a magnificent mausoleum at the heart of his new palace. A few centuries later, that same mausoleum was transformed into a cathedral dedicated to one of the very martyrs he had executed. What a dramatic irony of history...

The structure we see today was expertly crafted from white marble, limestone, and brick around the late third century. By the seventh century, refugees from destroyed Salona, who settled in the palace walls, consecrated it as a Christian church dedicated to the Virgin Mary. A choir was later added, and by the 12th century, the elegant bell tower honoring Bishop Domnius rose above the ancient stone.

Saint Domnius himself was the Bishop of Salona, born in Antioch and beheaded in 304 alongside other Christians, ironically dying just a year before Diocletian abdicated. Today, this cathedral is still in use within its original structure, making it the oldest Catholic cathedral in the world still used in its primary form.

As you approach the cathedral, you’ll walk along the same main north-south and east-west streets that guided pilgrims through the palace centuries ago. At their crossing lies the Peristyle, a grand courtyard that serves as the main entrance to the cathedral.

Cross the threshold, and you’re stepping into over 1,700 years of layered history: from an emperor’s resting place to a medieval choir loft, through the Romanesque tower, and into a treasury. The latter is filled with numerous masterpieces such as the 13th-century Madonna and Child panel, intricately crafted reliquaries, ceremonial chalices, and manuscripts spanning from the 6th to the 19th centuries.

It is fair to say that nowhere else do imperial power, medieval devotion, and contemporary faith converge so elegantly, especially when viewed through the lens of fate’s own historical twist...