Serenely lying on a hill, the Kazarma Citadel or Acropolis is located on the 15th kilometre of the Nafplio-Epidaurus highway. The citadel boasts four circular towers and walls that are 2.5 meters wide and 5.2 meters high. It has a polygon shape and dates by some accounts from the fourth century BC! It was rebuilt however in Roman times, then in Byzantine times.