Forte Fortress is situated east of the monumental Land gate, built in 1567 by the Venetian military commander Sforza Pallavicino. The fortress was separated from the city and from land by defensive moats. Today the Vladimir Nazor Park is situated there. Following the shoreline next to the Forte fortress one reaches the area of Kolovare, where a convex well with head was built in 1546 next to the sea and was used to supply Venetian ships with fresh water.
References:The Château du Haut-Koenigsbourg is situated in a strategic area on a rocky spur overlooking the Upper Rhine Plain, it was used by successive powers from the Middle Ages until the Thirty Years' War when it was abandoned. From 1900 to 1908 it was rebuilt at the behest of the German kaiser Wilhelm II. Today it is a major tourist site, attracting more than 500,000 visitors a year.
The first records of a castle built by the Hohenstaufens date back to 1147. The fortress changed its name to Koenigsburg (royal castle) around 1157. The castle was handed over to the Tiersteins by the Habsburgs following its destruction in 1462. They rebuilt and enlarged it, installing a defensive system designed to withstand artillery fire.
The fortification work accomplished over the 15th century did not suffice to keep the Swedish artillery at bay during the Thirty Years War, and the defences were overrun.