Oldenburg (Oldenburg), Lower Saxony, Germany
Stuttgart, Baden-Württemberg, Germany
Cologne, North Rhine-Westphalia, Germany
Annecy, Rhone-Alpes, France
Dresden, Saxony, Germany
Cali, Valle del Cauca, Colombia
Bonn, North Rhine-Westphalia, Germany
Taipei, Taipei, Taiwan, Province of China
Tampere, Pirkanmaa, Finland
