In Kastelli hill, in Varypetro there are the remains of a fortified citadel with buildings of Hellenistic and Roman periods. In this hill after 961 the Byzantines build a new fortress, from which today survives only a part of the wall and the tank. The area was harmoniously linked with a newer building; an Orthodox monastic complex built near the fortress.
The headquarters Venizelos / Therisos Movement Headquarters
So called the headquarters of the Revolutionary Assembly in 1905, in Therisos, which organized the homonymous revolution against the authoritarian rule of the High Commissioner George. Nowadays, the building has been converted into a museum for the exposition of weapons, objects from that period and evidence of the revolutionary action of Eleftherios Venizelos.