Learn curious things about Bonn and discover crazy places in Bonn's city centre during a guided tour.

See platform 11 which has tracks or the subway shaft where a tram was forgotten. Find out why a commercial building was built in the city without permission, or why a wide avenue was laid through the historic old town. Hear the story of the tallest building on the market and the anecdote about the displacement of the Sterntor. And what is Office 99 in the town hall?