Auschwitz concentration camp, one of the labor camps and extermination camps established during the Nazi German period, known as the "death factory", its site is located in the small town of Auschwitz in the south of Poland, more than 300 kilometers from the Polish capital Warsaw, about 1.1 million people were killed in this concentration camp, Most of them were Jews. Visiting here, looking at the remains of the victims, hair, boxes, glasses frames, razors, heels, and so on, was full of depression and anger.