Castle of St. Peter (Bodrum Castle)

Built by the Knights of St. John in the early fifteenth century using stone quarried from the ruins of the Mausoleum of Halicarnassus — one of the Seven Wonders of the Ancient World — Bodrum Castle rises from a rocky peninsula at the entrance to Bodrum harbour with the deliberate solidity of a fortress designed to last. The knights held it for over a century before Ottoman forces took the town in 1523, after which the castle served various administrative and military purposes before becoming a museum.

The castle complex comprises multiple towers, each built by a different national contingent of the Knights Hospitaller, and a series of courtyards connected by ramparts with views over the Aegean. The most significant attraction within the walls is the Museum of Underwater Archaeology, housing finds from Bronze Age and Byzantine shipwrecks excavated from the surrounding seabed. The Glass Wreck Hall contains the reconstructed hull and cargo of a Byzantine vessel, while other galleries display amphora collections, gold jewelry, and navigational artifacts. Carved marble fragments from the Mausoleum of Halicarnassus are visible incorporated into the castle walls.

The castle and museum are best visited in the morning before heat builds and before harbour day-trippers arrive. The site involves considerable walking on uneven stone surfaces and stairways between towers, so comfortable footwear matters. Spring and autumn visits avoid the intense summer crowds of Bodrum’s peak season. Allow at least two hours to do justice to both the architecture and the museum collections.

The Castle of St. Peter is unusual among Aegean coastal fortresses in combining genuine military history with world-class archaeological collections. It anchors Bodrum’s identity as more than a resort town, connecting the harbour view that defines the city’s contemporary image to a layered history reaching back to the Hellenistic period.