A state public collection institute that preserves documents that are national treasures. The institution holds a total of 73 kilometers of records, more than 63.5 million microfilms and countless seals, maps, photographs, plans and diplomas. The building was built between 1913 and 1923 according to the plans of Samu Pecz in Romantic, historicizing style.

The National Archives of Hungary (in Hungarian: Magyar Nemzeti Levéltár) were created in 1756. They were first located in Pressburg, Upper Hungary (now Bratislava, Slovakia). In 1784, they were transferred to Buda.

The National Archives of Hungary is the nation's record keeper. Archival work in the 21st century is to collect, to catalog, and to restore historic documents, but also to serve the needs of society and the citizens, and provide them assistance in their research into history.