Brussels, Brussels-Capital, Belgium
Passau, Bavaria, Germany
Bogota, Bogota, Colombia
Liberec, Liberec Region, Czech Republic
Stráž nad Nisou, Liberecký kraj, Czechia
Vitoria-Gasteiz, Basque Country, Spain
Seoul, Korea (Republic of)
Nova Paka, Hradec Kralove Region, Czech Republic
Gorliz, Basque Country, Spain
Prague, Prague, Czechia
Brno, South Moravian Region, Czech Republic