Prague, Hlavní město Praha, Czech Republic
Nizhniy Novgorod, Russian Federation
Bergamo, Lombardia, Italy
Ulyanovsk, Ulyanovsk Oblast, Russian Federation
Kazan, Tatarstan, Russian Federation
Moscow, Moscow City, Russia
Moscow, Moscow, Russian Federation
Sarov, Nizhny Novgorod, Russia
Baku, Baku, Azerbaijan