Wrocław, Lower Silesian Voivodeship, Poland
Sofia, Sofia, Bulgaria
Pernik, Pernik, Bulgaria
Казанлък, Стара Загора, Bulgaria
Leicester, England, United Kingdom
Leuven, Flemish-Brabant, Belgium
Plovdiv, Plovdiv, Bulgaria
Barcelona, Catalonia, Spain
Gdynia, Pomeranian Voivodeship, Poland
