Ancient Potidaion, known as Poseidion, was located in the area of the present-day capital of Karpathos. The earliest traces of habitation date back to the Late Neolithic and Early Bronze Age. An important find is a stone female figurine, dating to around 3000 BC, which is now housed in the British Museum. The surviving remains on the Acropolis of Potidaion date from the Hellenistic period and are located mainly on the western slope of the hill. They include an inscription, part of a fortification wall and retaining walls. In the modern cemetery, an honorary decree in honour of Emperor Trajan is also preserved, built into the wall, while in the same area a section of an isodomic masonry wall, probably dating from the 4th century BC, can be seen. On the northern side of the acropolis, an underground rainwater collection cistern lined internally with hydraulic mortar is preserved, while farther to the northeast another underground structure can be seen. Similar cisterns are also known from the acropolises of other ancient cities of Karpathos.

http://odysseus.culture.gr/ Συντάκτης Βασιλική Πατσιαδά, αρχαιολόγος