Gottorp Castle
Gottorp Castle is built on an island in Slien a little west of the center of Schleswig. The castle was originally the bishop's castle, but from 1268 it passed to the Duke of Schleswig. Christian I took over the castle in 1559. Frederik I and Christian III expanded it further. The Dukes of Gottor lived in the castle in the period 1544-1713 and turned the castle into a cultural center with a unique library and art chamber.
The castle was Danish barracks in the period 1852-1864 and then German garrison. After the Second World War, the castle was used to house refugees and from 1947 for archive purposes and museums, i.a. art museum. In the old riding building immediately west of the main building, the Nydam boat is exhibited.