The exhibition presents reproductions of historic photographs, letters and documents, as well as authentic mementoes and objects, all making up a story about the problems of everyday life admist the inhuman conditions at the camp. Since 2013, the mezzanine of the museum has contained a scale model of the Dulag 121 camp. It is a faithful reconstruction of the 53-hectaresite and camp buildings, together with their surrounding railway tracks.
In 1944 the railway workshops were being used for Durchgangslager (Dulag) 121. It was e on 6 August 1944. From here persons capable of work were sent to the territory of the Third Reich.
The worst fate awaited those who were shipped to concentration camps. Transports left Pruszków for Buchenwald, Mauthausen, Stutthof, Auschwitz, Sachsenhausen, Oranienburg, Ravensbrück, Gross-Rosen, Neuengamme, Flossenbürg and Dachau. Around 60,000 prisoners were sent to these whilst the Dulag 121 camp was operating, of whom most lost their lives there.