Plovdiv, Plovdiv, Bulgaria
Logroño, La Rioja, Spain
Sant Antoni de Vilamajor, Catalunya, Spain
Sofia, Sofia City Province, Bulgaria
Aveiro, Portugal
Zugdidi, Samegrelo-Zemo Svaneti, Georgia
Osijek, Osijek-Baranja, Croatia
Riga, Riga, Latvia
Sliven, Sliven Province, Bulgaria
Istanbul, İstanbul, Turkey
Girona, Catalonia, Spain
