Ancient Acropolis of Kastro

At the very top of the hill are the ruins of the ancient acropolis of Kastro (6th century BC), with a Sifnian marble wall, the only surviving marble wall of this era in the Cyclades preserved today. The ancient acropolis, the ancient columns set in the walls of newer buildings, the Roman sarcophagi to be seen in the alleys, the six ‘lodges’ (gateways at the entrances to the village), 16th and 17th century chapels with decorated floors make Kastro a living open-air museum.

Source: www.sifnos.gr