Zielona Góra, lubuskie, Poland
Nizhnij Novgorod, Nizhegorodskaya oblast', Russian Federation
Sintra, Lisbon, Portugal
Ulm, Baden-Württemberg, Germany
Davao, Davao Del Sur, Philippines
Yekaterinburg, Sverdlovsk, Russia
Taipei, Taipei, Taiwan
Gothenburg, Västra Götaland County, Sweden
Zurich, Switzerland
Novosibirsk, Novosibirsk, Russia
Freiburg, Baden-Württemberg, Germany
Ulm, Baden-Wuerttemberg, Germany
