Auhswitz is one of them, though I butchered the spelling, as I have never seen it spelled.
Most concentration camps were liberated by the allied forces towards the end of the war.
There were many concentration camps established and run by the Nazis during WW2, in various countries. Two of the most familiar names among such camps were Belsen (Bergen-Belsen) and Auschwitz (Auschwitz-Birkenau). A list of Nazi concentration and extermination camps, along with other information and references can be found at Wikipedia, here: http://en.wikipedia.org/wiki/Nazi_concentration_camps
In the concentration camps, Jews and everyone else marched around the camps.
dieing
Auschwitz-Birkenau, (Poland)
I think because of the Holocaust, most of the concentration camps were in Europe.
The most famous concentration camp is Auschwitz because it was one of the biggest death camps, located in Poland.
It is known that Germans built over 2000 camps and sub-camps in occupied Europe. Auschwitz is the most famous but which is second best known varies. Bergen-Belsen or Majdanek is likely the second best known.
Most aspects of life in concentration camps were designed to be torturous.
From 1940 onwards most of the very large concentration camps were in Poland or in areas annexed from Poland. they varied all in germany. Europe held a lot of the concentration camps. they lived in germany.
Well technically the first groups affected by the Concentration Camps were Criminals and Political Opponents of the Nazi Party. However, the earliest and most effective group to be effected by the Concentration Camps were the Jews.
Why? Because the Jews were starving, and almost dead. When Americans found concentration camps, most were abandoned by Nazis.