Kos Kos Kos or Cos (; ) is a Greek island, part of the Dodecanese island chain in the southeastern Aegean Sea, off the Anatolian coast of Turkey. Kos is the third largest island of the Dodecanese by area, after Rhodes and Karpathos; it has a population of 33,388 (2011 census), making it the second most populous of the Dodecanese, after Rhodes. The island measures , and is from the coast of the ancient region of Caria in Turkey. Administratively, Kos constitutes a municipality within the Kos regional unit, which is part of the South Aegean region. The principal town of
Kastellorizo spread to an adjacent ammunition dump, thereby destroying half of the homes on the island. Kastellorizo was assigned to Greece with the Paris Peace Treaties, 1947. In May 1945 it was still under British administration, but on September 15, 1947 effectively came under Greek administration. The island formally joined the Greek State on 7 March 1948 together with the other Dodecanese islands. The island has become more popular in recent years, among tourists looking for an isolated place in the Dodecanese, thanks also to the 1991 Oscar-winning movie "Mediterraneo", by Gabriele Salvatores, which is set on the island. Kastellórizo was