The museum is separated into two locations. The ''Neues Schloss'', a former duke's residence and part of the city wall, hosts a collection of military artifacts from different eras as well as a bunch of replicas. The Reduit Tilly, a part of the former state fortress in ''Klenzepark'' hosts a WWI exhibition. The latter is a very interesting and well structured museum, with exhibits and documents from the era and some short films which summarize the regarded history. The Army Museum is renovated bit by bit in the moment, so some parts may be closed.