the entrance from birkenau concentration camp complex

window vintage solution ruins rudolf road red prisoners poland old nazi museum krakow konzentrationslager hitler himmler heinrich guard germany german genocide gas final extermination europe defense death criminal cracow cracovia concentration complex cell camp buildings building bricks board blocks block birkenau barracks barrack barbwire barbed auschwitzbirkenau auschwitz auchwitzbirkenau architecture annihilation entrance rail leads selection platforms station