Flossenbürg, Germany: Once a German prison, but under the control of the SS from 1938-1945, the Flossenbürg concentration camp was used primarily to house political prisoners, Allied POWs, and common criminals. Most prisoners were forced to labor constructing weapons for the Nazi war effort. It is estimated that 30,000 people died at Flossenbürg, many of whom had received death sentences for crimes against the Nazis. In the later years of the war, the number of executions rose substantially, and witnesses reported that the crematorium was filled to capacity. The camp was also employed as a training facility for SS women guards, and about one third of those detained at the camp were women. An extensive museum stands on the grounds today.