Old coal offices alongside Regent's Canal, King's Cross, London, England, United Kingdom, Europe

Head frame of the former coal-mine Minister Achenbach with a futuristic office complex by Luigi Colani, LuenTec Center for Technology, Luenen, North-Rhine Westphalia, Germany, Europe

Shaft tower and office building, Hammer Head Tower, Zeche Minister Stein, former coal mine, Neue Evinger Mitte, Dortmund Eving, Ruhr area, North Rhine-Westphalia, Germany, Europe

Head frame of the former coal-mine Minister Achenbach with a futuristic office complex by Luigi Colani, LuenTec Center for Technology, Luenen, North-Rhine Westphalia, Germany, Europe

Downtown office towers from new Convention Centre, Coal Harbour, Vancouver, British Columbia