Walls of channel glass, an industrial material that comes in long strips shaped in a shallow U, help preserve the residents’ privacy, while allowing only soft, filtered light inside. In the chapel, the DeBartolos paired and staggered the narrow panels so that only the most opaque light comes through. Obscure views and the most basic shapes and colors from outside create a glowing, ethereal quality indoors. Holy water is held in an elegant blue glass cylinder.  Photo 4 of 6 in Houses of the Holy