Bielefeld

The Sparrenburg Castle is a must-see, offering stunning views of the city. Other attractions include the Old Market Square, the Kunsthalle Bielefeld (art museum), and the Heimat-Tierpark Olderdissen (a local zoo).

The best time to visit Bielefeld is during the spring and summer months (May to September) when the weather is pleasant for outdoor activities and events.

Bielefeld has a well-developed public transportation system, including buses and trams. Walking and cycling are also popular ways to explore the city, especially in the city center and surrounding areas.