Bad Harzburg, Lower Saxony, Germany
Clausthal-Zellerfeld, Lower Saxony, Germany
Ouro Preto, Minas Gerais, Brazil
Kornwestheim, Baden-Württemberg, Germany
Brunswick, Lower Saxony, Germany
Hanover, Lower Saxony, Germany
Stuttgart, Baden-Württemberg, Germany
Backnang, Baden-Württemberg, Germany
Torino, Piemonte, Italy
Tübingen, Baden-Württemberg, Germany
Alexandroupoli, Greece