Paris(2), Kyiv, Kharkiv(2), Yekaterinburg, Krasnoyarsk, Moscow(4), Izhevsk, Riga, Warsaw, Darmstadt, Simferopol, Graz, Querétaro City, Belgrade, Nanjing, Tbilisi, Orenburg, Magnitogorsk, Falkenstein, Nizhny Tagil, Helsinki(2).