The Assos Castle (Greek: Κάστρο της Άσσου, Kastro tis Assou) is a Venetian fortification on Cephalonia island in western Greece.
Together with Saint George's Castle, the castle of Assos is a fine example of military architecture of the island of Cephalonia—British general Charles James Napier described is as 'stronger than Gibraltar'—and one of its main tourist attractions. It overlooks the bay of Agia Kyriaki, north of Paliki, and could act as a base from which to defend the island, to protect against pirates as well as a naval invasion. The castle stands on the top of a 170 m high rocky hill, which encompasses the entire peninsula of Assos. The castle is protected by a wall of 2000 meters length, and covers an area of 44,000 sq. meters.
Today the castle is open daily with no entry fee. Access to the castle is by a renovated stone path. Parts of the walls and an arched entrance gate with the Venetian Lion of Saint Mark are the mainly preserved sections. Visitors can see within the ruins the small church of St. Mark and the house of the Venetian High Commissioner. Close to the castle is the small, abandoned, church of the Prophet Elias which was built in 1888 on the ruins of another small church dating from 1500. Near the church are the ruins of a Venetian building owned by the Gentilini family.
Source: wikipedia.org