Archaeological surveys at “Kastellos”, a small rocky peninsula at the northern end of the island, have brought to light the remains of a small prehistoric settlement, dated in the so-called Early Cycladic II period, that is to say in mid 3 rd millennium b.C.

On the site of Palaiokastro, situated above the church of Panaghia (Virgin Mary), there have been found a few remains of buildings, possibly of an acropolis. The site also contained abundant potsherds, dated from the Classic period up to the Post-Byzantine times.

Ruins of an ancient defensive wall of the 4 th century b.C. have been detected in the actual cemetery of the town of Folegandros (Chora).

Archaeological evidence is visible in all the area around: there have been found inscriptions of the Classic period, parts of statues dated in the Roman period. The most interesting find is a Roman torso, enwalled in the masonry of the bell tower of the church of Panaghia. The pottery found in the broader area of Chora is abundant and comes from all periods.