Sofia, the capital of Bulgaria is a fast growing city with population of about 1.5 millions. It is located at the foot of Vitosha Mountain. It is a very old European city, founded in 7th century BC by the Thracians. Later it was part of the Roman Empire and the ex-Roman empire Byzantia. Since year 681 when Bulgaria was founded it has been a major bulgarian city and it has been a capital since 1879.

The city is visited each year by many tourists with many different intrests and purposes - to see the natural, archaeological and historical sites, to ski on Vitosha or the mountains around, to go to Black Sea beaches, to invest or buy property in the "new" post communist country, for meetings, business, education and science, etc.