The castle of Acrocorinth is the biggest in Peloponnese and according to the legend was the favorite place of the god Helios. It was built on a mountain altitude of 575 meters and it was created during the reign of Sisyphus, the mythic king of Corinth. This ancient sight of Acrocorinth Castle in Korithos Peloponnese includes a large multileveled yard, covering 25 hectare of land and is a typical example of fortress architecture. The walls have a polygonal shape following the natural curve of the rock and are strengthened at intervals with towers and bastions. After a long history of many occupations  Romans, Franks, Venetians, Turks- the castle returned to the Greek State in 1823 with the liberation of Corinth.