San Francisco, CA, United States
Sofia, Sofia, Bulgaria
Port-Vendres, Occitanie, France
Serdica, Sofia City Province, Bulgaria
Warsaw, Masovian Voivodeship, Poland
Kyiv, Kyiv Province, Ukraine
Sofia, Sofia City Province, Bulgaria
Sepolia, Greece
Prague, Prague, Czech Republic
Braunschweig, Lower Saxony, Germany
Vratsa, Vraca, Bulgaria