Colliery Pit, Rhondda Heritage Park, Rhondda Valley, South Wales, United Kingdom, Europe

Corta Atalaya open pit mine, copper mine, Rio Tinto, Minas de Rio Tinto, Andalusia, Spain

Aerial view of open pit mining, copper mine, Rio Tinto, Minas de Rio Tinto, Andalusia, Spain, Europe

Former Nordstern colliery, shaft tower, Nordstern Park, Gelsenkirchen, North Rhine-Westphalia, Germany, Europe

Yellow balloon, Schachtzeichen, mine shaft signs, Ruhr 2010, art installation, head frame of pit XII, Zeche Zollverein, former colliery, UNESCO World Heritage Site, Essen, Ruhr area, North Rhine-Westfalia, Germany, Europe

Headframe of pit XII, Zeche Zollverein, former colliery, UNESCO World Heritage Site, Essen, Ruhr area, North Rhine-Westfalia, Germany, Europe

Aerial view of open pit mining, copper mine, Rio Tinto, Minas de Rio Tinto, Andalusia, Spain

Aerial view of Corta Atalaya open pit mine, copper mine, Rio Tinto, Minas de Rio Tinto, Andalusia, Spain

Hammerhead tower of the former Erin colliery, Castrop-Rauxel, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Steigerhaus mine building and shaft tower of the former colliery and coking plant Osterfeld, now Olga-Park amusement park, Oberhausen, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Winding tower shaft 12 in the evening, colliery Zeche Zollverein, UNESCO World Cultural Heritage, Essen-Katernberg, Essen, North Rhine-Westphalia, Germany, Europe

Winding tower of the former Erin Colliery, industrial monument, Castrop-Rauxel, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Winding tower shaft 12 in the evening, colliery Zeche Zollverein, UNESCO World Cultural Heritage, Essen-Katernberg, Essen, North Rhine-Westphalia, Germany, Europe

Schachtzeichen project, mine shaft signs, European Capital of Culture, Ruhr 2010, winding tower of former colliery Koenigsborn III-IV, Boenen, Ruhr Area, North Rhine-Westphalia, Deutschland, Europe

Winding tower shaft 12 in the evening, colliery Zeche Zollverein, UNESCO World Cultural Heritage, Essen-Katernberg, Essen, North Rhine-Westphalia, Germany, Europe

Winding tower shaft 12 in the evening, colliery Zeche Zollverein, UNESCO World Cultural Heritage, Essen-Katernberg, Essen, North Rhine-Westphalia, Germany, Europe