Ground work began in 1970, the first steel ws laid in 1971 and construction was completed in 1973.
As a consolidated Corporate center for Sears.
from 1993 to 1997
The reason that the Sears Tower surpassed previous buildings is the bundle of nine tubes that help the building withstand wind.
Over one-million people visit the observation deck of the Willis Tower, formerly the Sears Tower, each year. The Willis Tower is a 108-story skyscraper, located in Chicago, Illinois.
sears tower.
There are about 1,500,000 visitors to the Sears Tower every year. This breaks down to around 4,110 visitors to the tower each day.
50 stories are on the sears tower
The Eiffel Tower was constructed in 1887 to 1889
the people that bought the sears tower are thinking about painting it silver. so i think that is why they are calling it the sears tower black
108 Stories, and the Sears Tower is now known as The Willis Tower.
The Sears Tower, now known as the Willis Tower, is 108 stories tall.
Willis Group Holdings, a London-based insurance broker, consolidated its Chicago area offices to the Sears Tower. As part of the deal, Willis Group Holdings gets to put its own name on the skyscraper.