The Bulgarian Academy of Sciences' National Institute of Archaeology with Museum encompasses the whole study of the civilization of tribes and peoples who populated present-day Bulgaria from the distant past until the 18th century. NIAM-BAS is a national agency that coordinates all field research

The SS. Cyril and Methodius National Library is Bulgaria's national library, located in the capital city of Sofia. Founded on April 4, 1878, the Bulgarian National Library was elevated three years later, and the Bulgarian National Revival Archive was integrated with it in 1924

Sofia's National Historical Museum is the country's biggest museum. It was established on May 5, 1973. On March 2, 1984, a new representative display was unveiled in the Court of Justice building to honor the 13th century of the Bulgarian state. The museum was relocated in 2000 to Boyana, the

The National Military History Museum is a museum devoted to the country's military past. Since August 1, 1914, it has existed under numerous titles and has been subject to several organizations as part of the Ministry of Defence (in practice since 4 July 1916). It has a 5,000 m2 indoor display

The National Museum of Natural History is a natural history museum situated on Tsar Osvoboditel Boulevard in Sofia, Bulgaria, near to the Russian church. It was founded in 1889 and is linked with the Bulgarian Academy of Sciences. It is the Balkans' first and biggest museum of its sort

The National Polytechnical Museum is a science museum located in Sofia, Bulgaria. The museum contains around 22,000 pieces in its collection, although only 1,000 of them are constantly exhibited. A library with over 12,000 books and periodicals, as well as an archive with around 2,000 papers