The centuries-old history of Sofia turns the city into an interesting tourist destination, with many cultural landmarks - the church-monument "St. Alexander Nevsky ”, the Rotunda of St. George, the churches“ St. Sunday "," St. Sofia ”,“ St. Sedmochislenitsi ”, the Russian Church“ St. Nikolay the Miracleworker".
The ancient cultural and communication complex Serdika (Largoto) is the largest open-air museum in the heart of the capital. It is an architectural ensemble of three buildings in the style of socialist realism, built in the 50s as a new representative center of the city. Today it is one of the most famous architectural examples of the era in Southeast Europe and one of the symbols of Sofia. It includes the former Party House, now used by the National Assembly, and two symmetrical buildings housing the Central Department Store, the Council of Ministers, the Presidency and the Balkan Hotel.
The National Palace of Culture is an emblematic building for the capital, built in 1981 as part of the initiatives to mark the 1300th anniversary of the establishment of the Bulgarian state. The largest congress center in Southeast Europe has 13 halls. In July 2005, the International Organization of Congress Centers awarded the National Palace of Culture with the annual award "Best Congress Center in the World".