Sint-Niklaas, Flanders, Belgium
Varna, Varna, Bulgaria
Bucharest, Bucharest, Romania
Sofia, Sofia City Province, Bulgaria
Tamworth, England, United Kingdom
Ruse, Ruse, Bulgaria
Copenhagen, Capital Region of Denmark, Denmark
Haskovo, Haskovo, Bulgaria
Ostrava, Moravian-Silesian Region, Czech Republic
Rome, Lazio, Italy