The life of a building comes from the way it is used, not the way it is decorated. There is no need to decorate the outside of the WTC, because it's the experi

The life of a building comes from the way it is used, not the way it is decorated. There is no need to decorate the outside of the WTC, because it's the experience of being inside that matters. As for gray cubes, you can shine any color or pattern of light on them you want.