Sofia is the capital and largest city of the Republic of Bulgaria, with a population of 1,270,450 (making it the 15th largest city in the European Union), and some 1,380,406 in the metropolitan area, the Capital Municipality.It is located in western Bulgaria, at the foot of the mountain massif Vitosha, and is the administrative, cultural, economic, and educational centre of the country.One of the oldest capital cities in Europe, the history of Sofia dates back to the 8th cent...