watchtower and the ruins of the old barracks from birkenau

annihilation architecture auchwitzbirkenau auschwitz auschwitzbirkenau barbed barbwire barracks birkenau block blocks board bricks building buildings camp complex concentration cracovia cracow criminal death europe extermination fence final gas genocide german germany heinrich himmler hitler information konzentrationslager krakow left museum nazi old poland rail road rudolf ruins solution tower train vintage watch watchtower