Kazan, Tatarstan Republic, Russia
Chelyabinsk, Chelyabinsk, Russia
Stuttgart, Baden-Wuerttemberg, Germany
Bratislava, Bratislavský kraj, Slovakia
Nizhny Novgorod, Nizhny Novgorod, Russian Federation
Chengdu, Sichuan, China
Moscow, Moscow City, Russia
Kazan', Respublika Tatarstan, Russian Federation
Kyiv, Kyiv Province, Ukraine
Warsaw, Masovian Voivodeship, Poland
