Whats worse than facelifting mediorce 1960s buildings is when one of particular archetectual quality is demolished in favor a larger, bland, and blend into the neighborhood, replacement. This was the fate of the U.S. Gypsum building on Wacker Drive in Chicago. To me, one the best designs of its day. Turned at a 45 dergee angle so small plazas were created at each corner its inovative narrow colums and contrasting window treatment immediately caught your attention. Sorry I don't have a pic to post, or of its successor, or you would see what I mean. Its a pitty this is being done in NYC. There is too much of the "I don't like it in today's perspective so lets change it" attitude out there!