The huge citadel overlooking the lake is surrounded by a wall built during the despotate of Epiros (13C) and restored by Ali Pasha, who ruled over Albania and Epiros (1741-1822). It was inhabited by the Turks, and from the 17C by the Jews, but is now almost deserted; it has retained an eastern flavour with its little streets, overhanging roofs and former mosques; Ali Pasha had his palace here on top of the rock.