The Castle of Chios is right behind the imposing byzantine port. It is not what you would expect as there are houses inside as well as a square with shops, coffee shops and restaurants. It is ideal for a walk as there are several attractions within the castle walls, like the Palace of Justiniani, the dark prison, the Turkish cemetery, the Barakli Tzami, the Krya Vrysi, the Great Vigla, and more.