Acropolis of Eresos
Ancient Eresos "was founded on a hill and lied by the sea" according to the Greek geographer and historian Strabo, and sections of the preclassical walls, medieval castle ruins, and the 5th-century-AD church, Agios Andreas, remain from the storied and long-inhabited site. The church has a mosaic floor and a tiny adjacent museum housing local finds from tombs in the ancient cemetery.