"The problem," as he explains it, "was to make all that architecture work together and make sense visually. I was able to do that by having windows on the sides of the piece to accommodate the cross views. I gave the subway platform a sense of depth by using a carefully placed mirror at the far end. As with almost all of my projects, the sight lines were critical." The piece, we might say, required a kind of Piranesian optical correction so that all its cross-angles and counterviews could be spatially comprehensible.
