The largest Nazi concentration camp formed during World War II The Auschwitz-Birkenau Memorial Museum was established in 1947 by the Polish Government on the site of the largest Nazi concentration camp, which was set up in 1940 for prisoners from Poland. From 1941 on Nazis imprisoned there people from all the countries occupied by the Third Reich. From 1942 it also became one of the biggest extermination camps for the European Jews. There is the exhibition entitled "Man Did This To Man" in the huts once used to house inmates. In recognition of its historical significance as a memorial to all who suffered and died there, in the 1979 the site of the former concetration camp in Auschwitz-Birkenau was entered on the UNESCO World Cultural Heritage list.