Liberec, Liberec Region, Czech Republic
Sao Jose dos Campos, Sao Paulo, Brazil
Baden, Canton Aargau, Switzerland
Hong Kong, Hong Kong
Helsinki, Uusimaa, Finland
Warsaw, Masovian Voivodeship, Poland
Arlington, VA, USA
Zilina, Zilina, Slovakia
Solothurn, Solothurn, Switzerland
Botkyrka, Stockholms län, Sweden
Safranbolu, Karabük, Turkey