Belgrade, City of Belgrade, Serbia
Izmit, Kocaeli, Turkey
Skopje, Skopje, Macedonia (the former Yugoslav Republic of)
Madrid, Community of Madrid, Spain
Istanbul, Istanbul, Turkey
Beograd, Avala, Serbia
Moscow, Moscow, Russian Federation
Skopje, Skopje Region, Macedonia (the former Yugoslav Republic of)
Manchester, England, United Kingdom of Great Britain and Northern Ireland
Tirana, Tirana County, Albania
Municipality of Kavadarci, Macedonia, the Former Yugoslav Republic Of
Jyväskylä, Central Finland, Finland
