The Ruhr region is not an architectural beauty. But traces of the industrial past exude a fascinating charm. Dunkl wants to know what lies behind the ubiquitous buzzword structural change. The tour begins in Bochum at the Jahrhunderthalle, steeped in history, and at a futuristic school building. In Essen, he discusses his new Folkwang library with architect Max Dudler. And in Duisburg, he discovers the drastic changes in the Duisburg Inner Harbour by Sir Norman Foster.