| Genève | / Canton de Genève, Switzerland / |
| Marburg | / Land Hessen, Germany / |
| Nicosia | / Nicosia District, Cyprus / |
| Bremerhaven | / Land Bremen, Germany / |
| Kuala Lumpur | / Wilayah Persekutuan Kuala Lumpur, Malaysia / |
| Teplice | / Ústecký Kraj, Czech Republic / |
| Zielona Góra | / Województwo Lubuskie, Poland / |
| Bochum | / Land Nordrhein-Westfalen, Germany / |
| Bad Kreuznach | / Rheinland-Pfalz, Germany / |
| Almería | / Andalucía, Spain / |
| Northampton | / England, United Kingdom / |
| Leszno | / Województwo Mazowieckie, Poland / |
| Manhattan | / New York, USA / |
| Pforzheim | / Land Baden-Württemberg, Germany / |
| Görlitz | / Freistaat Sachsen, Germany / |
| Rostock | / Land Mecklenburg-Vorpommern, Germany / |
| Rosenheim | / Freistaat Bayern, Germany / |
| Coburg | / Freistaat Bayern, Germany / |
| Wiesbaden | / Land Hessen, Germany / |
| Kuwait | / Muḩāfaz̧atalWafrah, Kuwait / |
| Brisbane | / State of Queensland, Australia / |
| Edinburgh | / Scotland, United Kingdom / |
| Kielce | / Województwo Świętokrzyskie, Poland / |
| Dessau | / Land Sachsen-Anhalt, Germany / |
| Gorzów Wielkopolski | / Województwo Lubuskie, Poland / |
