The Auschwitz-Birkenau State Museum is located in the buildings of the former Auschwitz I concentration camp (Stammlager) and on the grounds of the Birkenau extermination camp. Expositions of countries from which Jews were deported have been set up in several barracks. The Dutch exposition is located on the upper floor of barrack 21 in the Stammlager in Auschwitz. The first experiments for extermination with the Zyklon B gas were carried out in the Stammlager. This led to the construction of the Birkenau extermination camp, the place where the persecution and deportation of Jews and Sinti and Roma ultimately resulted in mass murder.