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Sisak

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About this place

Sisak stands on the Kupa, Sava and Odra, and its character is shaped by three unusually visible layers: Roman Siscia, a frontier fortress and the industrial city of the 19th and 20th centuries. Ancient Siscia operated an imperial mint and became the capital of Pannonia Savia in 297. At the meeting of the Kupa and Sava, the triangular Old Town fortress was begun in 1544 and ready for defence by 1550; it is inseparable from the decisive defeat of the Ottoman army on 22 June 1593. The modern centre is best explored beside the Kupa, linking archaeological traces of Siscia, the Cathedral of the Exaltation of the Holy Cross and the brick-and-stone Old Bridge completed in 1934. Mali Kaptol, one of Sisak’s oldest masonry houses and a late-18th-century building, now accommodates the tourist office. Railways, the refinery and metal industries later shaped Caprag and the city’s working landscape. The Old Town fortress remains closed for earthquake repairs following the 29 December 2020 earthquake, but its riverside setting and exterior are still central to understanding Sisak.

Sisak was shaped by the Odra flowing into the Kupa and the Kupa meeting the Sava, a geography that made it a river port, transport hub and site of unusually long urban continuity. Segestica occupied both banks of the Kupa; after Octavian’s conquest in 35 BC, a Roman military camp developed into Siscia, first a colony and later the capital of Pannonia Savia. The city’s defensive chapter is embodied by the triangular Old Town fortress near the confluence, associated with the 1593 victory over the Ottoman army. Civil Sisak and Military Sisak, once facing each other across the Kupa, were united in 1874 as a free royal city. Railways, river warehouses, the oil refinery and the ironworks later made Sisak a major Croatian industrial centre, an identity still legible in its station, workers’ districts and Ironworks Sculpture Park.

Things to see

Construction of the Old Town fortress began in 1544, and it was ready for defence by 1550; stone from ruined Siscia was reused in the work. The Old Bridge, completed in 1934, is recognisable by its combination of brick and stone, while its wooden predecessor of 1862 first joined Civil and Military Sisak. Mali Kaptol dates from the late 18th century and now houses the tourist office. The Roman layer is most clearly followed between the IN SITU site and the St Quirinus Archaeological Park.

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Things to do

Begin beside the Kupa at Mali Kaptol, where seven illuminated displays in the Sisak Historical Ring condense the city’s story from Segesta to modern times. The riverside walk leads towards the 1934 Old Bridge, whose brick-and-stone structure joins Sisak’s two historic banks. Look for the Roman layer at Siscia in situ, then follow the industrial story through the Dutch House interpretation centre and the sculpture park created around the Ironworks artists’ colony. Continue to the Old Town fortress for the view where the Kupa meets the Sava; its interior remains closed because of damage from the 2020 earthquake. For a longer ride, the Posavina cycling route starts below the fortress walls and enters Lonjsko Polje at Čigoč after leaving Sisak.

Food and drink

The Sisak tourist board maintains a dedicated restaurant directory that includes Vječna Vatra at 5 Lađarska Street, a convenient stop after walking beside the Kupa. Local menus range from weekday gablec lunches and grilled meat to river fish and contemporary Croatian or international cooking. For a setting outside the centre, Gornje Komarevo has a restaurant specialising in grilled food and game. Participating Sisak venues also create fixed promotional menus during Restaurant Week, an event traditionally held in March and October.

Tours and activities

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Nearest destination: Zagreb (48 km)

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Practical information

Practical information

The Sisak tourist office operates at 1 Trg grada Heidenheima. Visitors should note that the Old Town fortress remains closed for repairs following the 2020 earthquake and can therefore be viewed only from outside. Central sights beside the Kupa join easily into a walking route, whereas the fortress at the confluence and industrial Caprag are more convenient by car, bus or bicycle. Auto promet Sisak publishes information on urban and suburban buses, while national rail times are provided by HŽ Passenger Transport.

Parking

The intermodal Park&Ride facility in Zvonimirova Street provides 109 spaces immediately beside the railway station and bus terminal. It is reserved for passengers who leave their car in Sisak and continue by train or an Auto promet Sisak bus, so it is not general all-day tourist parking without a public-transport ticket. A valid ticket is required, while the vehicle registration can be sent to controllers through Viber, WhatsApp or Messenger without installing a dedicated app. Separate public spaces beside the Park&Ride serve other users, including visitors to the Zeleni Brijeg sports hall. Anyone planning a walk through the historic centre should therefore distinguish the passenger-only Park&Ride spaces from the adjacent public parking area.

Getting there and around

Sisak lies on the Zagreb–Novska railway corridor, and its railway station and bus terminal stand next to one another in Zvonimirova Street. Croatian Railways’ 2025/26 timetable remains valid until 12 December 2026, with several amendments introduced during the year, so departures should be checked for the precise travel date. Auto promet Sisak operates the local bus network; since May 2025, route 6 has crossed the restored Old Bridge, linking Frankopanska Street, Viktorovac and the former ironworks area before returning towards the bus terminal. The route runs on working days, with its first departure at 07:00 and last at 19:00, but does not operate on Saturdays, Sundays or public holidays.

Official tourist board(opens in a new tab)

Frequently asked questions

Can visitors enter Sisak’s Old Town fortress?

No. The fortress is closed for repairs following the earthquake of 29 December 2020.

When was Sisak’s Old Bridge built?

The present brick-and-stone Old Bridge was completed in 1934.

How many spaces does the Sisak Park&Ride have?

The Park&Ride beside the terminals on Zvonimirova Street has 109 spaces.

Where is the Sisak tourist office?

The Sisak tourist office is at 1 Trg grada Heidenheima.

When did Siscia become the capital of Pannonia Savia?

Siscia became the capital of the province of Pannonia Savia in AD 297.

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Photo credits: Sisak — Lucija Bušić (CC BY-SA 4.0) · Stupno — I would appreciate being notified if you use my work outside Wikimedia. More of my work can be found in my personal gallery. (CC BY 3.0) · Sisak Fortress — Mihovilhrgovic (CC BY-SA 3.0) · Siscia — Darko Tepert Donatus (CC BY-SA 3.0) · Sisak Cathedral — Andres rus (CC BY-SA 3.0) · St. Quirinus Basilica — Antonio Pillon (CC BY-SA 4.0) · Kuća za odmor Green Zen — IVICA ŠKRINJARIĆ (courtesy of the property owner) · Book Me Apartman — Natalija Kirša (courtesy of the property owner) · Osijek — Rp031 (CC BY-SA 4.0) · Vukovar — Bybbisch94, Christian Gebhardt (CC BY-SA 4.0) · Stubičke Toplice — MOs810 (CC BY-SA 4.0) · Slavonski Brod — Petar Milošević (CC BY-SA 4.0)