- en.wikipedia.org Zollverein Coal Mine Industrial ComplexZollverein Coal Erik Mine was founded by Duisburg-born industrialist Franz Haniel (1779–1868), who needed coke for steel production.
- stefanklamt.com Zeche-ZollvereinThe Zollverein Coal Mine Industrial Complex (German Zeche Zollverein) is a large former industrial site in the city of Essen, North Rhine-Westphalia, Germany.
- oma.com projects/zollverein-masterplanIn 1988 the coal refinery (the 'white side') of the Zeche Zollverein was closed, five years after the mines (the 'black side') had been shut down.
- youtube.com watchDie Zeche Zollverein, auch „Eiffelturm des Ruhrgebietes“ genannt, war ein von 1851 bis 1986 aktives Steinkohlebergwerk in Essen.
- eghn.org en/zeche-zollverein-schacht-xii-in-essen…The biggest and most modern colliery in Europe was created when the Zollverein Schacht XII – Katernberg colliery was built in 1928.
- sapientiatr.com Zeche_ZollvereinZeche Zollverein, 2001’den bu yana UNESCO’nun Dünya Kültür Mirası’na alınan eski maden ocağı.
- creativeindustrial.wordpress.com 2013/06/11/zeche…Zollverein was considered the most modern colliery in the world and the architecture of ‘Neue Sachlichkeit’ (New Objectivity) was an expression of this.
- tripadvisor.com.tr Attraction_Review-g187375-…Hallo Wanderer, ich kann die Übernachtungsmöglichkeiten vor Ort leider nicht beurteilen, doch haben wir für die Zeche Zollverein, ca.
- architizer.com projects/zeche-zollverein-…The former coal mine Zeche Zollverein, an area of 100 ha, was announced world heritage by UNESCO in 2002.
- showcaves.com english/de/mines/Zollverein.htmlThe Zeche Zollverein (Zollverein Colliery) is a huge former industrial complex, which started as a coal mine.