Groningen, Groningen, Netherlands
Domodossola, Piedmont, Italy
Angers, Pays de la Loire, France
Göttingen, Niedersachsen, Germany
Ravensburg, Baden-Württemberg, Germany
Hannover, Niedersachsen, Germany
Lyon, Auvergne-Rhône-Alpes, France
Brest, Bretagne, France
Ciudad de México, ciudad de México, Mexico
Leipzig, Saxony, Germany