The historic core of Hoyerswerda is dominated by a 14th-century Renaissance castle, which now houses the town hall and a local history museum. The castle is small and unpretentious, with a moat and a courtyard; the museum inside focuses on the Sorbian cultural heritage of Upper Lusatia, including displays on the Sorbian language, traditional costumes, and the characteristic Easter egg decoration that is the most widely known expression of Sorbian folk art.
The museum's costume collection is one of the most complete in the region. Sorbian women's dress varies significantly by village and occasion, and the doll collection — figures dressed in the costumes of different communities — gives a vivid sense of how elaborate and varied the tradition is. Admission is modest; the staff are happy to explain the displays in German or, if you are lucky, in Sorbian.