Duisburg, North Rhine-Westphalia, Germany
Dortmund, North Rhine-Westphalia, Germany
Dusseldorf, Dusseltal, Germany
Valbondione, Lombardia, Italy
Mülheim, North Rhine-Westphalia, Germany
Roundwood, Wicklow, Ireland
Mülheim an der Ruhr, NRW, Germany
Berlin, Berlin, Germany
Cologne, North Rhine-Westphalia, Germany
Sofia, Sofia City Province, Bulgaria
Valencia, Valencian Community, Spain
Gladbeck, Nordrhein-Westfalen, Germany