The Dodecanese contain islands.
Agathonísi is a small Greek island and municipality located at the northernmost point of the Dodecanese in Greece . Astypalaia ( Greek : Αστυπάλαια , [ astiˈpalea ] ) , is a Greek island with 1,334 residents ( 2011 census ) . It belongs to the Dodecanese , an archipelago of twelve major islands in the southeastern Aegean Sea . Dodecanese . Of the others , Kos and Patmos are historically the more important ; the remaining eleven are Agathonisi , Astypalaia , Kalymnos , Karpathos , Kasos , Leipsoi , Leros , Nisyros , Symi , Tilos , and Kastellorizo .