Saarbrücken, Saarland, Germany
Stuttgart, Baden-Württemberg, Germany
Bad Schwartau, Schleswig-Holstein, Germany
Whanganui, Manawatū-Whanganui, New Zealand
Karlsruhe, Baden-Württemberg, Germany
Christchurch, Canterbury, New Zealand
Opole, lower silesia, Poland
Melbourne, Victoria, Australia
Maastricht, Limburg, Netherlands
Saint Petersburg, Russian Federation
Shanghai, China
