It’s always interesting to learn about the history of a region you visit, and in Sønderjylland, this is best achieved at Sønderborg Castle.
With a striking location at the approach to the narrow strait of Alssund, the large, red castle has a long and dramatic history going back to the 13th century.
There are two major attractions: the castle itself, and the museum section with its many exhibitions.
In the castle, you can enjoy the castle chapel and several attractive halls, with the great hall, Riddersalen, being particularly impressive.
As for the museum, there are several permanent exhibitions that provide greater understanding of the history of Sønderjylland stretching all the way back to antiquity.