Perched on a hill above Ano Mera Village, Gyzi Castle is the ruins of an old 13th-century castle. It was built during the rule of the Gyzi family to keep a watch on pirates and enemies. Besides historical value, the hills provide amazing views of the island.
The strong and impenetrable walls of the castle served as a refugee for the villagers against intruders looking to inhabit the island. Visit the castle for ruins of the ancient city of Mykonos including an ancient cemetery, prehistoric market and the older wall fortification