Here at the confluence of the rivers Korana and Mrežnica already 1580th year, the Austrian Empire military authorities have built Barbican as predobranu Karlovac fortress. Here at Turanj was Military Border Guard, which will at the very end of the war of liberation 1699.godine be transferred to the fortress of Slunj. Here again history repeated. In the war, the Turanj again osvanuše invaders from the east. Fighting the line is 600 - 700 meters further south. Here is blocked from entering the Conqueror in Karlovac. There is no more appropriate place for a museum on the history of the war and the history of war.