I don't know where Auschwitz-Birkenau was located, but the word I just bolded was the largest and most efficient death camp existing out of all the others in Hitler's Europe. This camp is located in Poland though.
Auschwitz or to be more precise, Auschwitz-Birkenau.
Please see the related question below for more detail.
Auschwitz-Birkenau
Auschwitz-berkinau
Auschwitz and it was located in Nazi-Occupied Poland.
Auschwitz (Oswiecim in polish)
Auschwitz
Alamo
Auschwitz-berkinau
Auschwitz and it was located in Nazi-Occupied Poland.
The death camp was called "Auschwitz".
It was Auschwitz. The largest number of people died there too. Birkenau was the death facility.
The largest of the death camps during the holocaust was Auschwitz, in Poland.
Auschwitz (Oswiecim in polish)
Auschwitz. Please see the related question for more information.
Auschwitz
Alamo
The city in southwestern Poland, the site of the largest Nazi death camp during WW2 is Auschwitz
Oswiemcim, better known by its German name - Auschwitz.
Auschwitz, in Poland