Keywords: ALCOA Building Entrance (Pittsburgh).jpg ALCOA Building from southwest Entrance pavilion built of glass and aluminum Design by Harrison and Abramovitz ALCOA Building a k a Regional Enterprise Tower 425 Sixth Avenue Pittsburgh Allegheny County Pennsylvania A w Historic American Buildings Survey Historic American Buildings Survey ”HABS image Historic American Buildings Survey ” HABS No PA-6724-2 Nicholas Traub 2005 PD-USGov-Interior-HABS Regional Enterprise Tower Alcoa Pavilions in the United States Historic American Buildings Survey of Pennsylvania Black and white photographs of Pennsylvania Modern movement in Pennsylvania |