The Warsaw concentration camp was an associated group of the German Nazi concentration camps, possibly including an extermination camp, located in German-occupied Warsaw, capital city of Poland.
Auschwitz concentration camp was a network of concentration and extermination camps built and operated by the Third Reich in Polish areas annexed by Nazi Germany during World War II. It consisted of Auschwitz I (the base camp); Auschwitz II–Birkenau (the extermination camp); Auschwitz III–Monowitz (a labor camp to staff an IG Farben factory), and 45 satellite camps.
Janowska was a Nazi German labor, transit and concentration camp established September 1941 in occupied Poland on the outskirts of Lwów (Poland, today Lviv in Ukraine).
Mauthausen-Gusen concentration camp grew to become a large group of Nazi concentration camps that was built around the villages of Mauthausen and Gusen in Upper Austria.
Majdanek was a Nazi concentration camp established on the outskirts of the city of Lublin during German occupation of Poland.
Sachsenhausen was a Nazi concentration camp in Oranienburg, Germany, used primarily for political prisoners from 1936 to the end of the Third Reich in May 1945.