Diocletian’s Palace, Split: A Roman Emperor’s Retirement Home That Became a City

Roman emperors did not retire. Diocletian was the first to do so voluntarily, abdicating in 305 AD and retreating to this fortified complex on the Dalmatian coast. He spent his final years here growing cabbages, as the historical record unironically confirms he told colleagues who begged him to return to power. The palace he built for that retirement still stands, and approximately 3,000 people live inside its walls today. You can book a hotel room in the basement of what was once the emperor’s private apartments. This is not a reconstructed heritage site; it is a working medieval-to-modern city built directly on top of a Roman palace, and the palimpsest of architecture that results is genuinely unlike anything else on the Adriatic coast.

What the Complex Is

Built between 295 and 305 AD, Diocletian’s Palace occupies roughly 30,000 square metres on the southern edge of Split’s old town. It is a UNESCO World Heritage Site, designated in 1979 as part of the Historic Complex of Split. The outer walls, towers, and gates are largely intact. The interior is an accretion of Roman substructures, medieval apartments, Romanesque churches, Baroque additions, and 21st-century cafes. Entering through the Golden Gate (north side), the Silver Gate (east), the Iron Gate (west), or the Bronze Gate (south) costs nothing. Walking the Peristyle, the central colonnaded courtyard, costs nothing. Several internal attractions do charge admission.

What to See and What It Costs

The Palace Substructures (cellars): The basement levels are among the best-preserved Roman substructures in the world. Built as the foundations for the upper floors, they mirror the floor plan of the imperial apartments above. Entry is around €8. In 2024, renovation work on nearby Hrvojeva Street revealed a previously unknown guard passage leading from the eastern rampart directly into the cellars, sealed likely during the Ottoman era and buried progressively by debris over centuries. It is now being excavated.

Cathedral of Saint Domnius: This is Diocletian’s mausoleum, repurposed as a Christian cathedral in the 7th century by residents of nearby Salona who fled there after Avars destroyed their city. The emperor is, almost certainly, not still in it; his sarcophagus was moved and its eventual fate is unknown. The cathedral, baptistery, treasury, crypt, and bell tower can be visited on a combined ticket for around €15. The bell tower climb is worthwhile for the view over the Peristyle and, on clear days, the islands of Brac and Hvar. The cathedral is closed to tourists during Mass.

Temple of Jupiter: Now the baptistery of the cathedral complex. The original ceiling coffers survive intact.

The Vestibule: A roofless domed antechamber that once served as the formal entrance to Diocletian’s private quarters. Free to enter. The dome opening to the sky creates a striking spatial effect that reward a few minutes of standing still.

When to Visit

July and August bring intense tourist pressure: the Peristyle becomes congested with tour groups by mid-morning. The Golden Gate at 9:00 AM or just before closes precedes the worst crowds by around two hours. May, June, and September offer the best combination of weather and manageable visitor numbers. Split is also increasingly popular as a winter city break, with flights from across Europe and significantly emptier streets, though some attractions operate on reduced hours.

The Peristyle is worth avoiding between 10:00 AM and 11:00 AM specifically; narrow pathways become difficult to navigate in either direction during peak tour group movements.

Where to Eat

Konoba Fetivi in the Varos district (a five-minute walk from the palace walls) holds a Michelin Bib Gourmand and serves Dalmatian fish and seafood in a family-run setting. The pricier Michelin-recommended restaurants in Split include Zrno Soli and Zoi, both delivering contemporary Croatian cooking with better technique than most old-town venues.

Tri Volta, situated in what were the imperial quarters, is a local’s recommendation that has not been entirely overrun by tourists: simple Dalmatian plates starting around €12, outdoor seating in a small courtyard. To Je Tako, a tiny alley restaurant seating around 20 people and cash only, is the kind of place that rewards asking a local rather than consulting a map app. Storija Fine Dining is the only restaurant located within the city wall itself.

For lunch in the sun with a direct view of the palace, the Riva promenade cafes are expensive for what they are, but the setting is genuinely good and one coffee with the view is defensible.

Where to Stay

Hotel Vestibul Palace is positioned inside Diocletian’s Palace itself, with rooms in the imperial quarter and prices to match (luxury tier). Judita Palace Heritage Hotel, a 16th-century building immediately adjacent to the palace, offers panoramic balcony views and stone-walled rooms that reward the premium. For a smaller and less expensive option, Grgur Ninski Rooms is a boutique B&B with four rooms inside the palace walls, starting from around £55 per night, with a design approach that contrasts original Roman stonework with contemporary furniture well.

Staying inside or immediately adjacent to the palace is strongly worth it over a hotel on the waterfront: morning hours inside the complex before the tour groups arrive belong to the residents, and being one of them, even temporarily, is a significant advantage.

Getting There

Split Airport is 20-25 minutes from the city centre; taxis run around €25-35. The ferry terminal and the main bus station are both a short walk from the Riva and the Bronze Gate, making Split easy to combine with island visits (Hvar is 2-3 hours by catamaran). Trains connect Split to Zagreb in around six hours; the route through Dalmatian inland scenery is one of the more underrated rail journeys in southern Europe.

Practical Points

The palace complex has no central ticket desk; attractions are individually ticketed at their own entrances. Wear shoes with grip; cobblestones inside the complex become slippery after rain. The underground cellars are cool year-round and worth having a layer for even in summer. Street musicians perform on the Peristyle on summer evenings and the acoustic effect in the open stone courtyard is unexpectedly good. It costs nothing to stand and listen.