Bodrum has an impressive castle that houses a museum for underwater archaeology. I show the two together, as that is how it works when you walk from tower to tower.

The huge exterior walls were designed in the early 15th century by the German architect Heinrich Schlegelholt and were strengthened by five towers known usually as the English tower, the Italian tower, the German tower, the French tower and the Snake tower. The French tower of the castle is thought to be the earliest one with the others being added during the following century. After the French Tower the Italian tower was built in 1436 by Italian architect Angelo Mascettola. The final parts of the castle were erected in the time of Pierre d’Abusson between 1476 and 1593, with the English tower being added at around 1480. The walls of the Bodrum castle contain nearly 250 coats of arms and armorial bearings of many of the knights that served there. Captured in 1522 by the Ottomans during the reign of Kanuni Sultan Suleyman, the church on the castle was converted into a mosque.