Siegen, North Rhine-Westphalia, Germany
Moscow, Moscow, Russian Federation
Heilbronn, Baden-Württemberg, Germany
Sant Joan d'Alacant, Valencian Community, Spain
Hamburg, Hamburg, Germany
Odintsovo, Moscow oblast, Russian Federation
Arcachon, Aquitaine, France
Lohmar, Nordrhein-Westfalen, Germany
Aachen, North Rhine-Westphalia, Germany
