Quick Facts
| City | Chicago |
| Country | United States of America |
| Year | 1971 - 1974 |
| Floors | 110 |
| Height | 442.3 m / 1 451 ft |
| Surface | 423 638 m² / 4 560 000 ft² |
Realization
| Architect |
Skidmore, Owings & Merrill (Bruce Graham) |
| Engineer |
Skidmore, Owings & Merrill (Fazlur Rahman Khan) |
| Construction cost | 175 million USD |
Building Info
| Alias |
Sears Tower |
| Address |
233 South Wacker Drive Block bounded by Franklin Street and Wacker Drive, Adams Street and Jackson Boulevard |
| Materials |
structural steel black anodized aluminum bronze-tinted glass |
| Status | Completed |
Notes
- Tallest building in the world from 1974 until 1997.
- The antennae were added in 1982.
- Height including the antennae is 1730 feet (527 meters).
- 104 elevators.
- 74,000 tons of steel were used for the construction.