City skyline silhouette

alcoa corporate center, pittsburgh pa 1994 - 1998

View of "service layers" of building from the north showing: - the core-building -- the opaque/frosted glass, translucent, and transparent thin vertical slab; the "wall" for the lightwell/atrium glass-wedge behind it. This slim orthogonal bar-building is flanked at both of its ends on the east and west by see-through firestairs - the urban silhouette, the blind-walls skyline -- the aluminum clad service tower, mechanical penthouse, sidewalk restaurant, main entrance pavilion, loading dock and parking garage entrances.