Haus Dellwig, an old moated building first mentioned in city records in the 12th century, now houses a variety of exhibits relating to Dortmund's rich history.

 Highlights include fully restored rooms, such as the kitchen and various living quarters, as well as a variety of workshops, such as a cobbler's shop and bakery. 

You can see more artifacts from Dortmund's history at the Museum of Art and Culture, with displays of old furniture, gold coins, medieval and 19th-century paintings, as well as examples of 17th- and 18th-century folk art. The Natural History Museum is notable for its collections of fossils and minerals.