UNESCO Themes - Industry   Mining and the industrial revolution have left an indelible stamp on German history. The legacy of striking industrial architecture is just as much part of mankind's heritage as other cultural achievements. These include the Rammelsberg mines in Goslar, which were mined over a period of 1,020 years, the Völklingen Ironworks, the largest ironworks in the Saarland, and the industrial complex of the Zollverein Mine in Essen.