Bulgaria is a country located in the southeastern part of Europe, bordered by Romania, Serbia, North Macedonia, Greece, and Turkey. The capital of Bulgaria is Sofia, which has five letters. Bulgaria is part of the Balkan region, which has seven letters. Bulgaria was formerly ruled by Tsars, which has four letters, and its currency is the Lev, which has three letters. The country is also known for its Borises, which has seven letters, and its currency is the Leva, which has four letters.