The ingenious integration of art and architecture included a collaborative effort with artist Walter De Maria, one of the great minimalist artists of our time. De Maria's sculpture, One Sun /34 Moons, is the centerpiece of the expansive granite-paved entrance plaza with a reflecting pool that forms a new entry space shaped by the existing building and the new Lobby "Lens". The "moons" of the art work are circular skylight discs in the bottom of the pool that project water-refracted light into the garage below. Conceived as a vehicular Arrival Hall, the garage is generously proportioned, directly connected to the new museum lobby on both levels, and spanned with continuous undulating vaults by an innovative pre-cast concrete ‘wave-T'.