Diocletian’s Palace is the reason Split exists. The emperor Diocletian built it around 305 AD as his retirement villa, picking a sheltered bay halfway down the Dalmatian coast. He died here in 311. Then the palace sat mostly empty for three centuries until refugees from nearby Salona fled inside the walls in the 7th century, escaping Slav and Avar raids. They never left. They built houses inside the imperial walls, then expanded out. Today the entire eastern half of the Old Town is what is left of the palace, and roughly 3,000 people still live and work inside it.
This is the best-preserved Roman imperial residence in the world. UNESCO listed it in 1979. The palace is also the most-misunderstood attraction in Split. Most visitors think it is one building they enter and tour. It is not. The “palace” is a 38,000 square meter open-air neighborhood you walk through every time you cross from the Riva to the green market. This guide explains what to actually see, where to buy the few tickets that matter, and what most travel articles get wrong.
The Four Gates: Pick Your Entry
The palace has four original gates, one on each cardinal side. Each was named for a metal:
- Golden Gate (north): The grandest of the four. Now the main pedestrian entrance from the north side, with the giant Ivan Mestrovic statue of Bishop Gregory of Nin outside. Locals rub his toe for luck. His toe is shinier than the rest of him.
- Silver Gate (east): Faces the green market. The original Roman threshold is visible in the pavement.
- Iron Gate (west): Faces the People’s Square. Most cruise visitors enter here without realizing it. Look up. The medieval clock on the inside is from 1411 and still works.
- Brass Gate (south): Faces the Riva. This was Diocletian’s private sea entrance, used for his personal boat. Today it is the most photographed gate and the one most visitors associate with the palace.
If you have only one entry to make memorable, walk in through the Brass Gate. You go straight into the Substructures and emerge on the Peristyle. That is the original imperial sequence and it still works as theater.
What to See (In Order of Worth It)
The Peristyle
This is the open colonnaded square in the center of the palace. It was the imperial reception area. Today it is the visual heart of Split. The black granite Egyptian sphinx on the eastern side is genuine, dating to around 1500 BC, brought from Egypt by Diocletian himself. He was obsessed with Egyptian aesthetics.
The Peristyle is free to enter. Sit on the steps. There is a cafe (Luxor) that lets you order a coffee and use their cushions on the steps. Five euro coffee. Worth it once.
The Cathedral of Saint Domnius and the Bell Tower
The cathedral is the small octagonal building on the eastern side of the Peristyle. It is one of the oldest functioning cathedrals in the world. The strange part: it was originally Diocletian’s mausoleum. The same emperor who persecuted Christians more brutally than any of his predecessors is now buried under a building that was converted into a Christian church around the 7th century. His sarcophagus is gone, but the architecture is his.
Inside the cathedral is small but worth a 15-minute visit. There is a combined ticket that covers the cathedral, the bell tower, the crypt, the treasury, and the baptistery. As of 2026 it costs 8 euro. The single best part of the ticket is the bell tower climb. The view from the top is the aerial shot of Split you have seen on postcards. Tight spiral staircase. Skip if claustrophobic.
The Substructures (Basements)
The vaulted halls under the palace are the most intact part of the original 4th-century structure. They were used as warehouses, dumps, and eventually as set dressing for HBO. Daenerys Targaryen’s dragon scenes in Season 4 of Game of Thrones were filmed here. Today the central nave is free to walk through (it is also where the market stalls set up), and the side halls require a ticket (about 5 euro). The ticketed section is worth it. Cool in summer, dramatic acoustics, and easily the best preserved Roman cellars in the Mediterranean.
The Temple of Jupiter
Next to the cathedral, down a narrow alley, is a small rectangular temple that Diocletian dedicated to Jupiter. It was converted into a baptistery in the early Middle Ages. Most visitors walk past it because the entrance is unmarked. Inside there is a 4th-century coffered stone ceiling that is in perfect condition. Three euro to enter. Five minutes inside. Worth it for the ceiling alone.
Tickets: What You Actually Need
Most of the palace is free. The streets, the gates, the Peristyle, the Riva, the markets, the cathedral square. The things that require a ticket:
- Combined cathedral ticket (cathedral interior, crypt, treasury, bell tower, baptistery): 8 euro. Recommended.
- Substructures ticketed section: 5 euro. Recommended if you have not seen Roman ruins before.
- Temple of Jupiter: 3 euro. Optional. Sometimes included in combined tickets.
You can buy tickets at each entrance. There are no skip-the-line ticket sellers worth paying extra for. The queue at the cathedral can be 20 minutes between 10am and 2pm in July or August. Solution: go at 9am or after 6pm. The cathedral stays open until 7pm in summer.
Hidden Corners Most Visitors Miss
The Vestibule
Walk south from the Peristyle through the small archway. You enter a circular domed room with a hole in the ceiling and zero decoration. This was the entrance to Diocletian’s private imperial apartments. Acoustics are perfect. Local male a-cappella groups (klape) sometimes sing here. Free.
The Letrika Building Roof Bar
On the south wall of the palace, there is a former electric company building. The roof is now a small bar (Letrika) with an unmarked entrance through a stairwell. The roof gives you a view of the Brass Gate from above. Most cruise day-trippers never find it. Bartender knows everyone in town.
The Original 4th-Century Floor Mosaics
In the eastern Substructure hall there is a small section of original Roman mosaic floor exposed under glass. Most tour groups walk past it. The mosaic shows geometric patterns and is 1,700 years old. It is in the corner closest to the Silver Gate ramp. Look down, not up.
Best Time of Day to Visit the Palace
- 7am to 9am: Almost empty. Bakeries open. Morning light hits the cathedral bell tower. Best photo light.
- 9am to noon: Cruise day-trippers arrive. Cathedral ticket queue gets long. Peristyle fills up.
- Noon to 4pm: Hottest. Locals retreat indoors. Tourists are everywhere.
- 4pm to 7pm: Crowds thin. Cathedral has shorter queues. Light is warm.
- 7pm to 11pm: Evening Riva crowd arrives. Restaurants fill. Palace becomes one big outdoor dining hall.
How Long Does the Palace Take?
- Cruise visit (90 minutes): Brass Gate to Peristyle to Cathedral exterior to Substructures central nave to Riva. Done.
- Half-day proper visit (3 hours): Add cathedral interior, bell tower climb, Temple of Jupiter, ticketed Substructures. Coffee at Luxor.
- Full day with details (6 hours): Above plus the four gates separately, the Vestibule, the market, the People’s Square, lunch at a konoba inside the palace, sunset on the Riva.
The Walking Tour Question
Many guided walking tours of Diocletian’s Palace are sold in Split. Honest assessment: most are 60 to 90 minutes, cost 25 to 40 euro per person, and cover essentially the same Peristyle, cathedral exterior, and Substructures route. The good ones add local stories. The bad ones rush you through and shove you toward a souvenir shop at the end.
Our open-top bus tour includes a 30-minute guided walk through the palace as part of the 1.5-hour total tour. The 17-language audio guide narrates the palace history as we drive past it from the Riva. The walking portion covers Peristyle, cathedral exterior, and the central Substructures nave. Total cost: 15 euro per adult for the whole tour, not just the palace section. Reserve a seat here if it fits your day.
The Two Things Most Travel Sites Get Wrong
First: you do not buy a single ticket to enter “the palace.” There is no entrance gate to buy a ticket from. The streets are free public space. Confused visitors sometimes wait in line at the cathedral thinking it is the palace entrance.
Second: the “Game of Thrones tour” thing. Multiple operators in Split sell tours specifically focused on filming locations. The only palace location used for filming was the eastern Substructure hall. You can see it yourself for 5 euro. The Klis Fortress (12 km away) is the bigger Game of Thrones site if you are a serious fan.
Diocletian’s Palace is one of the great pieces of late Roman architecture still standing. It is not a museum, it is a living neighborhood. Walk it slowly, eat inside it, and try to imagine that an emperor planned this layout 1,700 years ago for himself to retire in. He did not get many years here. You will probably enjoy your morning in it more than he did his final autumn.
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