Helsinki, Uusimaa, Finland
St. Petersburg, Leningrad region, Russian Federation
Tallinn, Harju county, Estonia
Ivanovo, Ivanovskaya oblast', Russian Federation
Prague, Hlavní město Praha, Czech Republic
Hanoi, Viet Nam
Cologne, North Rhine-Westphalia, Germany
Latvia
Wien, Wien, Austria
Moscow, Moscow, Russian Federation
Brno, South Moravian Region, Czech Republic
Moscow, Moscow City, Russia