21st century museum of contempory art, SANAA 2004: the building is circular and has various other polygons protruding from the top of the site

 Sao Paulo Museum of Contempory Art, LINA BO BARDI 1957-68: the building is rectangular and looks like it is being held up by 4 legs

 Brazilian museum of Sculpture , Paulo Mendes da Rocha 1988-94: the building looks like it has an artificial roof over one part of it. it seems as though it is plain and has barely any features