bunker in the carso

architecture aurisina autumn blue boulder boulders building buildings bunker bunkers bush bushes carso cloud clouds color colors colour colours conflict country countryside deciduous defence defensive europe european fall forest forests friuli gold golden green italian italy iulia karst landscape landscapes lautumnal limestone military nature one orange path paths protection red rock rocks rural season seasonal skies sky stone stones structure trail tree trees vegetation venezia war wood woods world ww1 wwi yellow