rusted metal door at fort stevens military bunker

abandoned abstract abstraction adversity aging america ancient antique architectural architecture armory astoria background bar barricade blockade bolt brown building bunker buynker cage captive captivity categories close closed closeup color countries danger deadbolt decay defending detail dirty door doors exterior fastener fastening fort handle historic historical hole iron keyhole latch lock medieval metal metallic military nail old oregon oxidize padlock pattern protect rivets rough rusted rusty secure security steel stevens studs warning