During the Nazi era, the Haus der Rheinischen Heimat was supposed to be a "German folk museum in the best sense" and of "national political importance". It showed Rhenish history from the Carolingians to the 20th century. The museum inventory was joined by a range of Nazi literature, including several copies of Mein Kampf (even after 1945) as well as other objects of different provenance, often in exchange with other institutions.
