The ruins of Ancient Troezen – homeland of the mythical hero Theseus - are situated just outside the village of Troezen. The majority of the archeological findings are exhibited at the Museum of Poros. The archeological site of Troezen extends north and northwest of the modern settlement of Troezen on the east cost of Argolis and at close distance to the sea which is 2 km to the north.
Ancient Troezen was built on the north slope of Mount Aderes and on part of the alluvial plain north of the mountain. One stream to the east (Aghios Athanasios) and another one to the west (the Bridge stream or Chrysorrhoas according to Pausanias) marked the boundaries of the ancient town. Along these two streams, the long walls of the fortifications of the ancient town descended from the Acropolis which was located on a hill towards the south at an altitude of 313 meters. The Agora (gathering place) was located on flat terrain at the foot of the mountain. The “most renowned” (Pausanias ΙΙ.32.1) sanctuary of Hippolytus was located outside the city walls west of the Bridge stream and at a higher level than the foot of the mountain. The distance between the sanctuary of Hippolytus and the Agora was 800 meters.
The enclosure and the structures of the sanctuary were situated outside the walls of Ancient Troezen and were built at the end of the 4th century BC or at the beginning of the 3rd century BC. They were built upon an earlier place of worship which was located in the area of the small geometric temple (temenos). It was there that pottery fragments dating back to the Geometric, Classical and Hellenistic period were discovered, as well as clay objects featuring depictions of popana (cakes) which were given as offerings to the deity.