Nazi concentration camps and extermination camps were two very different places. Extermination camps killed people. Concentration camps are where people lived a

Nazi concentration camps and extermination camps were two very different places. Extermination camps killed people. Concentration camps are where people lived and were worked to death. The extermination camps were usually next to concentration camps, where the survivors could live to work in the extermination camp. Some of the confusion is that the complexes are called "concentration camp" like Auschwitz which had 40 individual concentration and extermination camps. Probably because the concentration camps came first and exterimination camps were added on.