In the design of high density office or residential towers, frequently a parking garage fills the 2nd to 5th floors. The garage lives above the retail storefronts and and below the offices or apartments. Over the last 20 years, public art have been called into service to enliven the walls with huge artworks designed to let the fresh air enter the garage.
Other garages for developments are freestanding. The first image by artist Ned Kahn moves in the wind, sending patterns across the surface.
Instead of the walls to let the air flow, the structural walls or stairs become places for artistic action.