An industrial tour of the Germany's Ruhr industrial area, the Ruhrgebiet, includes the cities of Duisburg, Essen, Bochum, and Dortmund. Waste piles from industry, abandoned coal mines and steel mills, and various museums interpret this former heavy industry region of Germany.

Köln Cathedral Coal Miner Gas Holder Gas Holder Köln HBF Ruhr Landscape Waste Mound Steel Mill