The fortress was constructed using limestone blocks salvaged from the nearby Roman amphitheater.
Antoine de Ville, the fort's designer, was a French engineer commissioned by Venice to strengthen Pula's defenses.
The central courtyard contains a functioning 17th-century water cistern.
The museum collection includes rare artifacts recovered from shipwrecks in the Northern Adriatic.
The site served as a military observation point during both World Wars.
The fort's star-shaped layout is designed to eliminate blind spots for artillery defense.
The collection features specialized exhibits on the history of the Uljanik shipyard.
The Historical and Maritime Museum of Istria is housed within a 17th-century Venetian star-fort located on the highest hill in Pula. The fort, known as Kaštel, was designed by French military architect Antoine de Ville to protect the harbor. The museum's collection features over 40,000 artifacts documenting the naval history, socio-political changes, and daily life of the Istrian peninsula. Key displays include maritime navigation instruments, weaponry, and documents from the Austro-Hungarian era. The museum also maintains extensive archives of historical photography and postcards depicting regional development. Visitors can walk the outer ramparts to view the Pula Arena and the surrounding Adriatic coastline. The structure itself remains a primary example of baroque fortification design in Croatia. Archaeological remains from the Roman period are integrated into the lower sections of the fortification.
The upper rampart walkway, specifically looking over the harbor and the Pula Arena simultaneously.
Walk the full perimeter of the castle ramparts for a 360-degree view of Pula.
Visit the small lighthouse installation located on the terrace for historical context on local maritime safety.
Wear comfortable, non-slip footwear as the historic stone surfaces inside the fort can be uneven.
Do not expect a modern, climate-controlled facility; the historical stone interior can be significantly warmer than the exterior.
Respect signage regarding restricted access to older, structural wall sections; photography is permitted but avoid using flash in darkened artifact galleries.