The buildings are part of the "Cultural Ensemble of the Republic" complex, planned in the immediate vicinity of the central square of the Three Powers by Lucio Costa in 1960. Nearby is the cathedral and other important buildings of the city, most of them erected according to the designs of Niemeyer.
The opening ceremony of two more of its buildings, which took place in the presence of the President of the country, marked the beginning of the celebration of the "Niemeyer Centenary" - the year of his centenary (Oscar Niemeyer was born on December 15, 1907).
The designs of both new buildings are made in the recognizable individual style of the architect: these are large laconic geometric shapes, the hemisphere of the museum and the rectangular block of the library. The purpose of the museum is “to display the best works of art in Brazil” and the libraries are “to promote the social integration of society”
The first exhibition of the National Museum is dedicated to the work of Oscar Niemeyer himself.