A combination of pure volumes, built in white concrete, and piled up in vertical, are articulated through a circulatory graft structure composed by the communication core and the accesses to the different programs. The covered areas and terraces generates a public space network which clear the exhibition and administrative programs. The emptying of the building responds to the existing luminance and thermal studies: a “radiation mapping” of small hollows are arranged throughout the facades, changing density and accumulation.