You can find out about the history of Bielefeld with a visit to Old Town Hall. Amble around the area's parks or visit its monuments.
You can spend time exploring the galleries in Marta Herford Museum in Herford. While you're in the area, wander around the forests.
Commune with nature and explore the great outdoors at Weser during your travels in South Bremen. While in this walkable area, you can enjoy the bars.