Obninsk, Kaluga, Russia
Opava, Moravian-Silesian Region, Czech Republic
Laukaa, Central Finland, Finland
El Paso, texas, USA
Doncaster, England, United Kingdom
Strasbourg, Alsace-Champagne-Ardenne-Lorraine, France
Albertslund, Denmark
Austria
Ostrava, Moravian-Silesian Region, Czech Republic
Las Palmas de Gran Canaria, Canarias, Spain
Prague, Czech Republic
Poznań, Greater Poland Voivodeship, Poland