Valencia, Spain, Spain
Durango, Durango, Mexico
Groningen, Groningen, Netherlands
Georgina, Ontario, Canada
Ottignies-Louvain-la-Neuve, Walloon Region, Belgium
Aachen, North Rhine-Westphalia, Germany
Göttingen, Niedersachsen, Germany
Greifswald, Mecklenburg-Vorpommern, Germany
Düren, NRW, Germany
Saint Petersburg, Florida, United States