Klis Fortress

"Three concentric outer walls encircle this fortress, a genuine city in the 9C. The most recent dates from the Austrians, the others are Venetian. " Full review

"The imposing Klis Fortress spreads along a limestone bluff, reaching 1260ft (385m) at its highest point...inside, you can clamber all over the fortifications and visit the small museum." Full review