Los recintos, las alambradas, las torretas de vigilancia, las casamatas, las horcas, las cámaras de gas y los hornos crematorios de este campo de concentración y exterminio, que fue el más vasto de los creados por el Tercer Reich, dan fe de las condiciones en que se perpetró el genocidio nazi. Según los trabajos de investigación histórica, entre 1.100.000 y 1.500.000 prisioneros –en gran parte judíos– fueron sistemáticamente privados de alimentación, torturados y asesinados en este campo, símbolo de la crueldad ejercida por el hombre contra sus semejantes en el siglo XX.
On August 4, 1944, the police discovered the secret annex after receiving an anonymous tip. The group in the annex were taken completely by surprise—the SS officer and the four Dutch Nazis who conducted the raid proceeded quickly, drawing guns to keep the employees from warning those in hiding and forcing Kugler to reveal the entrance to the annex, which was concealed by a movable bookcase. Everyone in the annex was taken into custody along with Kleiman and Kugler, who were imprisoned for helping to conceal the group. The Franks, the van Pels, and Pfeffer were taken to a police station in Amsterdam and four days later, taken to the Westerbork transit camp. On September 3 they were transported in a sealed cattle car to Auschwitz in Poland—the last transport to ever leave Westerbork. Three days later, Hermann van Pels was gassed at Auschwitz.
The hair of 12 year-old Lili had not been cut since her early childhood. When she and her family were forced to leave their home in Târgu-Mureş and move to the ghetto, Lili’s mother, Rivka, knew she would not be able to care properly for her daughter’s hair in the ghetto. Chopping off Lili’s two long, beautiful braids, she promised that they would be given to the neighbors for safekeeping.Within six weeks, Lili and her mother were murdered at Auschwitz.
A Nazi era school textbook for German students entitled Heredity and Racial Biology for Students written by Jakob Graf described to students the Nazi conception of the Aryan race in a section titled "The Aryan: The Creative Force in Human History".[136] Graf claimed that the original Aryans developed from Nordic peoples who invaded ancient India and launched the initial development of Aryan culture there that later spread to ancient Persia and he claimed that the Aryan presence in Persia was what was responsible for its development into an empire.[136] He claimed that ancient Greek culture was developed by Nordic peoples due to paintings of the time which showed Greeks who were tall, light-skinned, light-eyed, blond-haired people.[136] He said that the Roman Empire was developed by the Italics who were related to the Celts who were also a Nordic people.[136] He believed that the vanishing of the Nordic component of the populations in Greece and Rome led to their downfall.[136] The Renaissance was claimed to have developed in the Western Roman Empire because of the Germanic invasions that brought new Nordic blood to the Empire's lands, such as the presence of Nordic blood in the Lombards (referred to as Longobards in the book); that remnants of the western Goths were responsible for the creation of the Spanish Empire; and that the heritage of the Franks, Goths and Germanic peoples in France was what was responsible for its rise as a major power.[136] He claimed that the rise of the Russian Empire was due to its leadership by people of Norman descent.[136] He described the rise of Anglo-Saxon societies in North America, South Africa and Australia as being the result of the Nordic heritage of Anglo-Saxons.[136] He concluded these points by saying: "Everywhere Nordic creative power has built mighty empires with high-minded ideas, and to this very day Aryan languages and cultural values are spread over a large part of the world, though the creative Nordic blood has long since vanished in many places".[136]
The term "Nazi" was in use before the rise of the NSDAP as a colloquial and derogatory word for a backwards farmer or peasant, characterizing an awkward and clumsy person. In this sense, the word Nazi was a hypocorism of the German male name Ignatz (itself a variation of the name Ignatius) – Ignatz being a common name at the time in Bavaria, the area from which the NSDAP emerged.[6][7]
Höss was succeeded as Auschwitz commandant in November 1943 by SS Obersturmbannführer Arthur Liebehenschel, who served until 15 May 1944. SS Sturmbannführer Richard Baer became commandant of Auschwitz I on 11 May 1944, and SS Obersturmbannführer Fritz Hartjenstein of Auschwitz II from 22 November 1943, followed by SS Obersturmbannführer Josef Kramer from 15 May 1944 until the camp's liquidation in January 1945. Heinrich Schwarz was commandant of Auschwitz III from the point at which it became an autonomous camp in November 1943 until its liquidation.[83]
Of course, there were aspects of Nazism which were reactionary, such as their attitude toward the role of women in society, which was completely traditionalist,[284] calling for the return of women to the home as wives, mothers and homemakers, although ironically this ideological policy was undermined in reality by the growing labor shortages and need for more workers. The number of women in the workplace climbed throughout the period of Nazi control of Germany, from 4.24 million in 1933 to 4.52 million in 1936 and 5.2 million in 1938, numbers that far exceeded those of the Weimar Republic.[285]
The first German concentration camps were established in 1933 for the confinement of opponents of the Nazi Party—Communists and Social Democrats. Political opposition soon was enlarged to include minority groups, chiefly Jews, but by the end of World War II many Roma, homosexuals, and anti-Nazi civilians from the occupied territories had also been liquidated. After the outbreak of World War II the camp inmates were used as a supplementary labour supply, and such camps mushroomed throughout Europe. Inmates were required to work for their wages in food; those unable to work usually died of starvation, and those who did not starve often died of overwork. The most shocking extension of this system was the establishment after 1940 of extermination centres, or “death camps.” They were located primarily in Poland, which Adolf Hitler had selected as the setting for his “final solution” to the “Jewish problem.” The most notorious were Auschwitz, Majdanek, and Treblinka. (See extermination camp.) At some camps, notably Buchenwald, medical experimentation was conducted. New toxins and antitoxins were tried out, new surgical techniques devised, and studies made of the effects of artificially induced diseases, all by experimenting on living human beings.
Via the offices of the Sicherheitsdienst, the German security police, prison in Amsterdam, and the Westerbork transit camp, the people from the Secret Annex were put on transport to the Auschwitz-Birkenau concentration and extermination camp. The train journey took three days, during which Anne and over a thousand others were packed closely together in cattle wagons. There was little food and water and only a barrel for a toilet. 
The Auschwitz camp complex has survived largely unchanged since its liberation in January 1945. The remaining camp buildings, structures and infrastructure are a silent witness to history, bearing testimony of the crime of genocide committed by the German Nazis. They are an inseparable part of a death factory organized with precision and ruthless consistency. The attributes that sustain the Outstanding Universal Value of the property are truthfully and credibly expressed, and fully convey the value of the property.

As a result of the Holocaust, the term "concentration camp" carries many of the connotations of "extermination camp" and is sometimes used synonymously. Because of these ominous connotations, the term "concentration camp", originally itself a euphemism, has been replaced by newer terms such as internment camp, resettlement camp, detention facility, etc., regardless of the actual circumstances of the camp, which can vary a great deal.