The local branch of Museum Sønderjylland covers the history and archaeology of southern Jutland (Sønderjylland) — the contested borderland between Denmark and Germany that changed hands three times between 1864 and 1945. The collections include prehistoric artefacts from the region, items from the Danish-German border conflict period, and material culture from the town itself.
The border question — which nationality was Sønderjylland, and who got to decide — is handled with appropriate nuance, and the museum gives good context for understanding why a small Danish town has so many German-language street signs and bilingual heritage. Worth an hour, especially for anyone with an interest in the peculiar history of northern European nationalism.