99 steps up to the Skywalk, which leads at a height of 26 meters via a furnace gas pipeline to western blast furnace 5. And there: climb step by step to a height of 64 meters. And what is all this for? You can enjoy a spectacular view of the site of the former iron and steel works and of Dortmund's attractions such as the Phoenix Lake, the Florian or the SIGNAL IDUNA Park and, 'by the way', learn a lot about the city, the region, mining, the steel processing industry and the structural change.