17. Pile of shoes, Belzec

18. One of the cremation pits used to burn the victims of the gas chambers in Auschwitz. These "burning pits" were used mainly in the summer of 1944, when the extermination was going at such a rate that the furnaces couldn't handle the number of corpses.

19. The furnaces of Krema II in Auschwitz

20. The gas chambers of Krema IV in Auschwitz. As opposed to Kremas II and III, these gas chambers were above ground, and the Zyklon-B was introduced through small openings in the wall, which had shutters on them (visible in the photograph).

21. A report from Himmler to Hitler, listing 363,211 Jews murdered in the Nazi occupied Soviet Union during August- November of 1942.

22. An overview of Krema IV in Auschwitz. The gas chambers are in the back; in the foreground, the morgue and the crematorium

23. Children subjected to medical experiments in Auschwitz

24. Nazi medical experiments: a prisoner is submerged in a tank filled with cold water. The goal of this type of experiments was to check how long German pilots, who had to parachute into the cold north sea, would survive. Different types of clothing were tested, as well as different methods for reviving the experimental subjects who survived

30. what have we learned?

31. Some of The worst genocides of the 20th Century Mao Ze-Dong (China, 1958-61 and 1966-69) 49,000,000 Jozef Stalin (USSR, 1934-39) 13,000,000 (the purges) Adolf Hitler (Germany, 1939-1945) 12,000,000 (concentration camps and civilians WWII) Hideki Tojo (Japan, 1941-44) 5,000,000 (civilians WWII) Pol Pot (Cambodia, 1975-79) 1,700,000 Kim Il Sung (North Korea, 1948-94) 1.6 million (purges and concentration camps) Menghitsu (Ethiopia, 1975-78) 1,500,000 Ismail Enver (Turkey, 1915) 1,200,000 Armenians Jean Kambanda (Rwanda, 1994) 800,000 Saddam Hussein (Iran 1980-1990 and Kurdistan 1987-88) 600,000 Benito Mussolini (Ethiopia, 1936; Yugoslavia, WWII) 300,000 Charles Taylor (Liberia, 1989-1996) 220,000 Slobodan Milosevic (Yugoslavia, 1992-96) 180,000