Unna is situated on the route of an ancient salt-trading route, the Hellweg road. Trade on this route and during the period of the Hansa Trade Route brought an income in form as far as London. It is located at the east end of the Ruhr area, approx. 15 km east of Dortmund.
In the older part of town are many half-timbered buildings built between the 16th and 19th centuries. Unna was an agriculturally-based town until the 19th century, when it became industrially-based. After the war the artisan district which had survived allied bombing was largely torn down to make way for modern development, however many of the buildings have been restored. The Lindenbrauerei once produced Lindenbier, and has started reproducing limited quantities for a few years now. The brewery is also home to the town library and night school (volkshochschule). It is also the centre for international light art (Zentrum fuer Internationale Lichtkunst).
Unna holds the largest Italian festival north of Italy every two years. The old Linden brewery (in the meantime a cultural center) is another attraction of the town.