The old name was Upper Paleocastro but was named Polirinia because it is located near the archaeological site. The ancient Polirinia in antiquity meant the city with many herds.
Many materials ofhad been used to build the village. They can be seen in homes, backyards and public buildings.
The village remains very picturesque. The traditional houses and narrow alleys that lead to the square of Polirinia, where is situated the preserved building of community refer to another era.
Great impression causes to the visitor the ruins of an old mill opposite the municipal office, which was built with stones from the aqueduct of the Roman emperor Hadrian. Two of the columns have been taken from ancient Polirinia, one of the palace and the other from the temple of Artemis Diktinnis.
In Polirinia, one can see the Cathedral of the Assumption, built into a rock.