Duisburg, North Rhine-Westphalia, Germany
Torun, Kuyavian-Pomeranian Voivodeship, Poland
Dortmund, North Rhine-Westphalia, Germany
Barcelona, Catalonia, Spain
Moscow, Moscow, Russian Federation
Köln, North Rhine-Westphalia, Germany
Cleveland, OH, USA
Saint Petersburg, Saint Petersburg, Russian Federation
Gießen, Hessen, Germany
Toronto, Ontario, Canada
Duisburg, Nordrhein-Westfalen, Germany
Buenos Aires, Buenos Aires City, Argentina
