Answer:
Auschwitz
Explanation:
Auschwitz became the largest Nazi death camp in Poland during World War I and the Holocaust. The Auschwitz was a complex of forty concentration camps along with extermination, built and operated by Nazi Germany. Earlier the camp was an army barracks for the Polish army. Most of the people who sent to camps were the Jews, Gypsies, Roma, Polish and Soviets prisoner of war.
