Oinoi - Panos Cave
3 km northeast of the village of Marathon, the Cave of Panos was excavated. It was used as a residence by a small group of farmers of the latest and final Neolithic (5300 - 3200 BC). During the Bronze Age (3rd millennium BC) it was used as a residence and burial place. The finds of historical times indicate the worship of Panos, Nymphs, Muses, Charitas and Apollo (6th to 2nd century BC), as well as religious use of the area by Christians. Nearby are the ruins of a large farm house with surrounding farmland and a tower for storing produce. The Pythion, a sanctuary of Apollo, belonged to the ancient municipality of Oinoi, identified with a large rectangular building, near the medieval tower of Oinoi. It had the form of a peristyle with marble pillars, where beds were fixed. Perhaps it was a donation from Herodes Atticus.
Source: MINISTRY OF THE AEGEAN