• Parthenon marble on the dam, since its 54-meter face is covered in the same Pentelic stone as the Acropolis temple
• Athenian Treasury replica at the base of the dam, built to recall the Athenian victory at the Battle of Marathon
• Easy to combine with Schinias Marathon National Park and the Tomb and Archaeological Museum of Marathon for a full day out

Lake Marathon is a reservoir built in 1931 to supply Athens with water. Its 285-meter dam is faced with the same Pentelic marble used on the Parthenon, and a replica of the Athenian Treasury at Delphi stands at its base.

Reeds, plane trees and eucalyptus line the banks. A visit pairs well with Schinias Marathon National Park and the Tomb and Archaeological Museum of Marathon.