The castle was built to work in tandem with Kilitbahir Castle on the opposite European shore to create an impenetrable defensive choke point.
The name 'Kale-i Sultaniye' eventually became the namesake for the city of Çanakkale itself.
The structure contains an inner keep built on a square plan with two-story walls designed to support heavy artillery platforms.
The site hosts a reproduction of the famous Piri Reis world map, highlighting early 16th-century cartographic knowledge.
The gardens feature an expansive collection of naval mines recovered from the Dardanelles, marking the location of major historical maritime engagements.
The mosque located inside the castle courtyard dates back to the original 15th-century construction, though it has undergone various restorations.
Cimenlik Castle, originally known as Kale-i Sultaniye, was commissioned in 1462 by Sultan Mehmed the Conqueror to secure the Dardanelles strait. It occupies a strategic position at the narrowest point of the passage between the Sea of Marmara and the Aegean. The fortress houses the Piri Reis Museum, which features a collection of maritime artifacts, artillery, and maps. Its defensive walls are punctuated by interior chambers that currently display historical naval exhibits. The grounds contain a diverse collection of military hardware, including decommissioned naval mines and coastal defense guns. As of June 2026, the castle serves as both a historical fortification monument and a functioning military museum under the jurisdiction of the Turkish Armed Forces.
From the upper ramparts looking out toward the Dardanelles strait to capture the contrast between the stone walls and the modern maritime traffic.
Visit the upstairs exhibition rooms first to get an overview of the Dardanelles' maritime history before exploring the grounds.
Dedicate time to the outdoor garden to see the large-scale naval artillery and mine collection.
Check your surroundings carefully as the site is an active military zone; follow all posted boundary signs.
Do not attempt to enter restricted zones marked by military personnel or signage, and avoid visiting during mid-day heat as there is minimal shade in the courtyard.
Closed on Mondays.
Maintain a respectful demeanor as it is a military site; photography is permitted in most areas but restricted near active military installations.
