The museum was modernized both physically and in its collections during the 1955–64 tenure of director Jorge Romero Brest. A temporary exhibits pavilion opened in 1961, and the museum acquired a large volume of modern art though its collaboration with the Torcuato di Tella Institute, a leading promoter of local, avant-garde artists, and elsewhere; a contemporary Argentine art pavilion opened in 1980. This  hall is the largest of 34 currently in use at the museum, which totals  of exhibit space.
During Jorge Romero Brest's tenure as director from 1955 to 1964, the museum was modernized both physically and in its collections. A temporary exhibits pavilion opened in 1961, and the museum acquired a substantial amount of modern art through collaboration with the Torcuato di Tella Institute, a leading promoter of local avant-garde artists, and elsewhere; a contemporary Argentine art pavilion opened in 1980. This hall is the largest among 34 currently used at the museum, covering exhibit space.