Koblenz, Rhineland-Palatinate, Germany
Hamburg, Hamburg, GER
Wroclaw, Poland
Porto, Porto, Portugal
Oulu, Northern Ostrobothnia, Finland
Helsinki, Uusimaa, Finland
Matamoros, Tamaulipas, Mexico
Berlin, Berlin, Germany
Lodeve, Languedoc-Roussillon, France
Rotterdam, Zuid-Holland, Netherlands