The old Blast Furnace Plant is a great reminder of industrial culture. If you do not know that, it's awesome and incredible. Whereby a lot is missing here - so was a whole blast furnace to the base removed - you can see the empty scaffolding. So what. It is still a great landmark. Great is a Skywalk Tour: ruhr-tourismus.de/de/das-ruhrgebiet/staedte/dortmund/skywalk-phoenix-west.htmlIf you have licked your blood then you should take a look at the Landschaftspark Nord and the Henrichshütte in Hattingen. The latter is much better and more complete.