Quick Facts
| City | Philadelphia, PA |
| Country | United States of America |
| Year | 1990 |
| Floors | 54 |
| Height | 241.4 m / 792 ft |
Realization
| Architect |
Kohn Pedersen Fox Associates |
| Developer |
CommonWealth REIT |
| Engineer |
WSP Cantor Seinuk |
Building Info
| Alias |
Mellon Bank Center Nine Penn Center |
| Address | 1735 Market Street |
| Materials |
steel |
| Style |
Postmodern |
| Status | Completed |