Sofia, one of Europe's oldest capitals, boasts a rich history spanning over 7,000 years, originally founded by the Thracian tribe Serdi as Serdica.

Strategically located in the Sofia Valley at the foot of the Vitosha Mountain, the city's elevated position and natural surroundings have profoundly shaped its development and climate.

As Bulgaria's largest city and capital, Sofia is home to approximately 1.3 million residents within its municipality, experiencing steady population growth driven by internal migration and urbanization trends.

The city served as a significant Roman city under Emperor Trajan, later becoming Sredets during the First Bulgarian Empire, reflecting its evolving medieval Slavic identity.

After five centuries of Ottoman rule, Sofia was liberated in 1878 and declared the capital of the newly independent Principality of Bulgaria in 1879, rapidly undergoing modernization.

Sofia functions as Bulgaria's primary economic powerhouse, with its economy predominantly driven by the services sector, including information technology, finance, trade, and tourism.

The St. Alexander Nevsky Cathedral, an iconic symbol of Sofia, is one of the largest Eastern Orthodox cathedrals in the world, renowned for its impressive golden domes and intricate interior.

Boyana Church, a medieval Bulgarian Orthodox church nestled at the foot of Vitosha Mountain, is a UNESCO World Heritage Site celebrated for its remarkably well-preserved 13th-century frescoes depicting biblical scenes.

The city is a major educational and scientific hub, hosting numerous universities, including Sofia University "St. Kliment Ohridski," the oldest higher education institution in Bulgaria.

Cultural life in Sofia thrives with numerous theaters, museums, art galleries, and an annual calendar of events, including the prestigious Sofia International Film Festival.

The ancient Serdica complex, visible in the city center, showcases archaeological layers from Roman, Byzantine, and medieval periods, testifying to Sofia's continuous historical settlement beneath the modern city.

Vitosha Mountain, immediately bordering Sofia, offers residents and tourists ample opportunities for hiking, skiing, and panoramic city views, serving as a vital natural park and recreational area.

Modern Sofia has diversified its industrial base, attracting significant foreign direct investment, particularly in software development, telecommunications, and business process outsourcing.

Local traditions such as celebrating Martenitsa on March 1st, involving the exchange of red and white amulets for health and good luck, are widely observed in Sofia, embodying ancient Bulgarian customs.

The National Palace of Culture (NDK) stands as the largest multifunctional congress and exhibition center in Southeastern Europe, playing a central role in Sofia's cultural and political landscape.