Hexamilion Wall

Hexamilion Wall - Credit: Wikimedia Commons

The Hexamilion wall (, "six-mile wall") was a defensive wall constructed across the Isthmus of Corinth, guarding the only land route onto the Peloponnese peninsula from mainland Greece. Read more on Wikipedia

type: ancient site
date from: Early Medieval to Late Medieval
official website: http://odysseus.culture.gr/h/3/eh351.jsp?obj_id=12741

Source: en.wikipedia.org