Madrid, Community of Madrid, Spain
Essen, North Rhine-Westphalia, Germany
Bochum, North Rhine-Westphalia, Germany
Dortmund, North Rhine-Westphalia, Germany
Ottersberg, Niedersachsen, Germany
Philadelphia, PA, USA
Münster, North Rhine-Westphalia, Germany
Bern, Bern, Switzerland
Évian-les-Bains, Auvergne-Rhône-Alpes, France
Rödermark, Hessen, Germany
Tbilisi, Georgia