Grodno, Hrodna Region, Belarus
Ilmenau, Thuringia, Germany
Yelizovo, Kamchatka Krai, Russian Federation
Vienna, Vienna, Austria
Skopje, Skopje, Macedonia (the former Yugoslav Republic of)
Astana, Kazakhstan
Khartoum, Khartoum, Sudan
Prague, Czechia
Sankt-Peterburg, Saint Petersburg, Russian Federation
Moscow, Moscow, Russian Federation
Hamburg, Hamburg, Germany
Sleman, Special Region of Yogyakarta, Indonesia