Hexamilion Isthmus wall and Justinianic fortification

The Hexamilion is a cross-wall of decidedly poor condition, a long stone barrier built in the sixth century AD to sever the Isthmus of Corinth. The Byzantines raised it to defend the Peloponnese from barbarian incursions, though little of its former might survives today. What remains is a fragment, best seen by taking the old national road towards Corinth; two kilometres past the Isthmus, on the right, a sign points to the ruins. This visible stretch is only a small portion of the original fortification, which once ran from sea to sea. The rest has vanished into the landscape, leaving the visitor with a sense of scale rather than substance. The Greek Ministry of Culture, via the Odysseus portal, records its history, but on site there is no interpretation, only the stones themselves. Access is free, and the modest remains reward those who pause to consider how this slender line once held back entire armies.

Heritage data from Wikidata, compiled and verified in the Atika atlas.