letters on entrance wall with name and building date of fortress, fort kluze, german: flitscher klause. bovec, gorizia, slovenia.

activity alps attraction battle bovec castle clue complex defense description destination domestic door europe flitsch fort fortification fortress front gorizia heritage hint hotspot inside isonzo klause kluze kluafrac34 koritnica landmark landscape letters mountain name national panorama place protection residence sightseeing sign signpost slovenia stone tourist travel valley wall war world