
 
 | This complex of buildings is the corporate headquarters for PPG (Pittsburgh Plate Glass) Industries.  The five-acre site includes six glass-sheathed buildings: one forty-story tower at 635 feet, 4 smaller buildings at 6 stories each, and another at fourteen stories. The central tower | ||
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| The main tower entrance, the entrance loggia, and side porch of the main tower; the 14 foot rose granite obelisk in the plaza was also designed by the architects | ||
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| The building to the right of the tower | ||
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|  |  | The 14-story building to the left of the towerLike other buildings in Johnson's late career, this complex alludes to earlier historic buildings--Gothic architecture, Westminster Palace, etc. See, for example, the AT&T building and 190 South La Salle in Chicago. | 
| The Wintergarden at the rear of the complex | ||
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