the ramp at Birkenau, the selection station and extermination subcamp of Auschwitz. The people in the background are on their way to be gassed. The building of Crematorium II is just visible at the top of the picture.
Half of the original prisoners' wooden barracks from the Nazi German concentration and extermination camp Auschwitz II—Birkenau returned to Poland after more than two decades of being loaned to the United States Holocaust Museum in Washington. More: http://en.auschwitz.org/m/index.php?option=com_content&task=blogcategory&id=97&Itemid=7