Dachau and Auschwitz
Two extermination camps (not ordinary concentration camps) were closed after revolts: Treblinka and Sobibor.
The key distinction was between extermination camps and labour camps ("ordinary" concentration camps).
Hannah never actually went to a concentration camp. She was sent to two camps, but they weren't concentration camps.
Yes , the two genders were separated into different concentration camps .
Auschwitz-Birkenau
It's common to draw a distinction between 'ordinary' concentration camps like Dachau and Buchenwald, and extermination camps. The latter existed only for the purpose of killing. They are:Auschwitz II (Birkenau section)BelzecChelmnoMajdanek (part only)SobiborTreblinka IIIn addition, there were transit camps and various 'specialized' camps.
The key disinction is between 'ordinary' concentration camps (such as Dachau or Buchenwald) and extermination camps such as Treblinka and Sobibor. The sole purpose of extermination camps was to kill. Note that Auschwitz and Majdanek combined both kinds of camps.
Here are the name of the Major Concentrations in Poland during the Holocaust:AuschwitzBelzecChelmnoMajdanekSobiborWarsaw
I think because of the Holocaust, most of the concentration camps were in Europe.
She was in one transit camp - Westerbork - and two concentration camps: Auschwitz and Bergen-Belsen.
Birkenau and Treblinka.
Please see the related question.