Most popular fortresses BulgariaKyustendil Province Fortresses Kyustendil province Fortresses Kyustendil Province mapSee on the map Kyustendil province fortresses by popularity rating +KYUSTENDILBulgariaHisarlaka Fortress See fortresses in other regions Blagoevgrad Province Burgas Province Dobrich Province Gabrovo Province Haskovo Province Kardzhali Province Kyustendil Province Pazardzhik Province Pernik Province Pleven Province Plovdiv Province Razgrad Province Ruse Province Shumen Province Silistra Province Sliven Province Smolyan Province Sofia Sofia Province Stara Zagora Province Targovishte Province Varna Province Veliko Tarnovo Province Vidin Province Other categories:ChurchesWaterfallsMuseumsMonasteriesAnimalsLakes
