The ancient city of Paos or Paeonia, as mentioned by Herodotus, was flourishing from the ancient times and was located in the area, between Vesineika andl Skoupeiko or New Paos around Kalathas’ well where from was supplied with water. It had walls whose length is estimated to of lenght 516 m. A tank is preserverd to which end a clay pipe that brought water from a spring 230 meters to the east. There are ancient building foundations, possibly possibly a palace. Also foundations of the temple of the Dioscuri are found and many secondary walls in the lower areas as well many rectangular towers and a gateway. Below the citadel in the flat around the springs, was located the main settlement of ancient Pau. According to Herodotus, the ancient Paos is referred as home to one of the suitors of Agariste (daughter of Sikyon’s tyrant, Cleisthenes) Lafani, son of Efforionos, who according to tradition, hosted the Dioscuri and since then has been very welcoming to all people. Ancient Paos was conquered and annexed to the State of ancient Kleitoros. In Roman times the city declined and as mentioned by Pausanias, in 170 AD the place was deserted.