Sankt-Peterburg, Saint Petersburg, Russian Federation
Jena, Thuringia, Germany
Yekaterinburg, Sverdlovsk Oblast, Russian Federation
Bruchsal, Baden-Württemberg, Germany
Saint Petersburg, Saint Petersburg, Russian Federation
Moscow, Moscow, Russian Federation
Lisbon, Lisboa, Portugal
廊坊, 万庄, China
Marseille, Provence-Alpes-Côte d'Azur, France
Hamburg, Hamburg, Germany
Saint Petersburg, Russian Federation
Yekaterinburg, Sverdlovskaya oblast', Russian Federation