Kempten (Allgäu), Bayern, Germany
Plovdiv, Plovdiv Province, Bulgaria
Stockholm, Sweden
Heidelberg, Baden-Wuerttemberg, Germany
Tbilisi, Georgia
Bonn, North Rhine-Westphalia, Germany
Copenhagen, Capital Region of Denmark, Denmark
Maastricht, Limburg, Netherlands
Bellevue, Genève, Switzerland
Freiburg, Baden-Württemberg, Germany
Ludwigshafen, Rhineland-Palatinate, Germany
Paderborn, North Rhine-Westphalia, Germany
