zeche zollverein coal mine industrial complex essen unesco world heritage site ruhr area germany |
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| navigate by keyword : ancient area coal cultural dram economy essen europe european frame german germany headframe heritage industry load mining monument museum old pithead production rack retro ruhr shaft technology tower tram unesco union wagon washery west wheel world zeche zollverein |
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| UNESCO World Cultural Heritage Zeche Zollverein, Essen, Germany |
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