Sanctuary of Poseidon on Poros
Of the Archaic temple in the sanctuary of Poseidon, only the foundation ditch is preserved. The stoas of the Agora and the Bouleuterion were built gradually during the 4th and the 3rd centuries B.C. The identification of the so-called "Asklepieion" or the "Heroon of Demosthenes" is not certain.
Excavations on the site were conducted in 1898 by the Swedish S. Wide-Keljberd and have not been resumed ever since.
The most important monuments on the site are:
The temple of Poseidon.
Stoas of the Agora and the Bouleuterion.
"Asklepieion" or "Heroon of Demosthenes".