The altar of Dionysus is located at Gregoriou the 5th street, quite close to the “Casa Romana” monument, on the same level with the Hellenistic

The castle of Kos, better known as the castle of Nerantzia (castle of the sour orange tree), is the most important part of the fortifications

The ancient tomb of King Harmylos, ruler of the island, is one of the most curious and interesting archeological monuments of Kos. Located in the