Heilbronn, Baden-Württemberg, Germany
Cork, Cork, Ireland (Republic of)
Hannover, Niedersachsen, Germany
Vollmersweiler, Rhineland-Palatinate, Germany
Hamburg, Hamburg, Germany
Berlin, Berlin, Germany
Oulu, Northern Ostrobothnia, Finland
Göteborg, Västra Götaland, Sweden
Rostock, Mecklenburg-Vorpommern, Germany
Koblenz, Rhineland-Palatinate, Germany
Dunbar, Scotland, United Kingdom
Munich, Bavaria, Germany
