The medieval settlement included an inner city-citadel on a high rocky plateau, an outer city and unfortified suburbs.

Alongside Sofia, three other Bulgarian cities made the list: Varna, which ranked 213th with an index of 35.7%; Burgas, in 226th place with 33.9%; and Plovdiv, in 235th position. At the other end ...

In many Bulgarian towns and villages, winter is punctuated by the ancient Kukeri ritual, which is carried out to drive away the presence of evil. As with many cultural traditions passed down through ...

The air quality in several Bulgarian cities, including Pernik, Sofia, Plovdiv, Stara Zagora, Veliko Tarnovo, Ruse, Vidin, Dimitrovgrad, and Shumen, has been reported as poor, according to data ...