To the north of Chios stands the Castle (or Fortress), a diachronic center of attraction. Dated from the 9^th-10^th century, its architectural structure was influenced by the Genoans, the Venetians and the Ottomans, which will definitely be noticed by the visitor. The interventions and repairs did not stop until the 20th century, since the south wall of the castle was toppled for the construction of the port. The entrance is located in the main gate, although there were three gates originally. The mythical world of the castle awaits its visitors. The Ioustiniani Palace, the Dark Dungeon, the  Bairakli mosque, the Kria Vrysi, the Turkish Baths (nowadays a well-preserved museum), the Ottoman cemetery with the tomb of Kara Ali and the colorful Koulas (the tall tower) with the ancient parts from Tsesme as well as the impressive, giant bastions and the machicolations recall sceneries of the yore of this storm-tossed island.