Today, the situation in a neighborhood of Seferihisar Sigacik, 5 km west of district headquarters, 16 century, a castle was built within the walls of a structure to the environment has earned the right spread. This placement is in the old place that forms the harbor Teos'un north.

Sigacik walls of the fortress and the 1521 - 1522 on the orders of Sultan Süleyman the Magnificent in Rhodes for the purpose of trip is the preparation of the navy commander, was built by Mustafa Pasha was bright. At the time, as a residential Sigla-Sigala'ya (Sigacik) one of the soldiers outside the castle, a ward of expression and education through the daily life of a castle that was built inside the castle. In the inner part of the sea are the two towers and two gates. Kusadasi is outside the castle, a three-door has Ayasuluk and Seferihisar. In fact, two-story single solid the rest of the castle's walls to the two towers of the secret stairs to climb.