The capital of Bulgaria Sofia is a modern European city. The biggest Bulgarian city is located in Sofia Plain, 550 m above the sea level and occupies a territory of 1, 311 sq. km. Sofia is linked by international routes with European capitals, and via Istanbul and Ankara, with the Middle East. Sofia’s motto is: "Ever growing, never ageing". It is one of the ancient European cities (Roman name - Serdica, Slavic name - Sredets, and Greek name Triaditza). Sofia has its name since 14th century when it was renamed after St. Sophia Church. Numerous archaeological, cultural and historical monuments from its rich Thracian, Byzantine, Roman, Slav and Turkish history have been preserved among the modern edifices, the blend of new and old lending a charming quality to the capital.