- Andorra - Andorra
- Bratislava - Slovakia
- Bangkok, Thailand
- Celje - Slovenia
- Cesky Krumlov - Czech Republic
- Cleveland - USA
- Coventry - England / United Kingdom
- Darmstadt - Germany
- Geneve - Switzerland
- Granollers - Spain
- Graz - Austria
- Hamilton - Canada
- Kelowna - Canada
- Lanarkshire - Scotland / United Kingdom
- Lausanne - Switzerland
- Logrono - Spain
- Maribor - Slovenia
- Medias - Romania
- Monaco - Monaco
- Montreux-Vevey - Switzerland
- Murska Sobota - Slovenia
- Plock - Poland
- Patras - Greece
- Prakovce-Helcmanovce - Slovakia
- Ravne na Koroskem - Slovenia
- Reykjavik, Iceland
- Slovenj Gradec - Slovenia
- Sopron - Hungary
- Sparta - Greece
- Szombathely - Hungary
- Troyes - France
- Taipei - Taiwan
- Udine - Italy
- Ushgorod - Ukraine
- Velenje - Slovenia
