The charming new shopping arcade is the “place to be” in the city centre. The highlight, however, is the green building, which stands out from the rows of houses with around 10,000 plants of 41 different species. The completely overgrown façade and the rooftop forest reflect the course of the seasons. Discover the first such green building in Germany with its ecological and climatological features with our guides and stroll through the Calwer Passage and the half-timbered Calwer Straße.