Heidelberg, Baden-Württemberg, Germany
San José, Provincia de San José, Costa Rica
Freiburg im Breisgau, Baden-Wuerttemberg, Germany
Walloon Region, Belgium
Nosara, Guanacaste, Costa Rica
Liège, Walloon Region, Belgium
London, England, United Kingdom of Great Britain and Northern Ireland
Berlin, Berlin, Germany
Rosario, Santa Fe Province, Argentina
Cologne, Germany
Freiburg, Baden-Württemberg, Germany
Barcelona, Catalunya, Spain