This building, designed by Oscar Niemeyer, is a tribute and monument to honor the patriots and heroes of Brazil after the revolution. The glass mosaic, designed by Marianne Peretti, is just as modern as the building itself. It is located at the Squeare of Powers and the entrance is free.
Small (by local standards) building, quite interesting with its free shapes in direct opposition to the huge institutions that surround it. Unless you're a Brazilian history buff, don't bother with the interior.