Bulgaria (/bʌlˈɡɛəriə, bʊl-/ (About this soundlisten); Bulgarian: България, romanized: Balgariya), officially the Republic of Bulgaria (Bulgarian: Република България, romanized: Republika Balgariya, IPA: [rɛˈpublikɐ bɐɫˈɡarijɐ]), is a country in Southeast Europe. It is bordered by Romania to the north, Serbia and North Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. The capital and largest city is Sofia; other major cities are Plovdiv, Varna and Burgas. With a territory of 110,994 square kilometres (42,855 sq mi), Bulgaria is Europe’s sixteenth-largest country.
Sofia (/ˈsoʊfiə, ˈsɒf-, soʊˈfiːə/ SOH-fee-ə, SOF-; Bulgarian: София, romanized: Sofiya, IPA: [ˈsɔfijɐ] (About this soundlisten)) is the capital and largest city of Bulgaria. It is situated in the eponymous valley at the foot of the Vitosha mountain in the western parts of the country. The city is built west of the Iskar river, and has many mineral springs, such as the Sofia Central Mineral Baths. It has a humid continental climate. Being in the centre of the Balkans, it is midway between the Black Sea and the Adriatic Sea, and closest to the Aegean Sea.