Perpignan, Languedoc-Roussillon-Midi-Pyrénées, France
Madrid, Comunidad de Madrid, Spain
Eskisehir, Eskisehir, Turkey
Berlin, Berlin, Germany
Chengdu, Sichuan, China
Barcelona, Catalonia, Spain
Zielona Gora, Lubuskie, Poland
Toronto, Ontario, Canada
Willich, North Rhine-Westphalia, Germany
Seoul, Korea, Republic of
Osaka, Osaka Prefecture, Japan
