The Mauthausen concentration camp was founded in 1938. It was built by prisoners of another concentration camp - Dachau. Initially, it was supposed to keep criminals there, but since 1939 the camp was transformed into a "labor" camp for political prisoners. During the war, it was replenished with prisoners of war of different nationalities. It was believed that granite was harvested here for buildings in Germany and Austria. On the inside, on the wall near the gate, in the place where the new arrivals lined up, there are memorial plaques in memory of groups and individual prisoners.→