Built by the Austrians in 1882 on the site of a 17th-century fortress above a 70m ravine on the Koritnica River, Kluže Fortress is 4km northeast of Bovec. It was the site of an Austro-Hungarian garrison during WWI, right behind the front line of the Isonzo battlefield. Exhibitions outline its turbulent history.
Even more dramatic is the upper fortress, Fort Hermann , built halfway up Mt Rombon to the west in 1900. You can walk to these ruins from Kluže in about half an hour.
