At the peak of the hill Kastro, 107m, above the sea surface and less than 1km southeast of Chora, you can see the ruins of the ancient acropolis of the island. There are still andira (artificial terraces), on the highest of which there are still wall ruins, architectural parts, stone structures, fragments of pottery, as well as traces of fortifications. Info A necropolis of the classical times lies between the castle and the current settlement, in the open area defined by the churches of Agios Efstathios and Agii Anargyri. Based on its findings, it had been continuously used until the late Roman period.