barbed wire concentration camp fence gate nazi world war II bloom Camp deck forest green house shelter summer trees villa wooden black camp-fire danger fire flame hexagon pictogram red security sign yellow appearance architectural architecture broken building built camp complex clock clock tower design elements external features gray grey height heritage historic malfunctioning masonry non-functioning not working old ornamental ornamentation out-of-sync perspectives roof roofing rooves solar solar heaters solar panels storage surfaces tanks time tin roof tower tower clock walls windows barbecue camping chicken citrus cook cooking grill lime outside poultry sun banger bangers bbq outdoors picnic sausages snag snags tent concrete glass grass hut huts pow prison prisoner wall war wartime window