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Willis Tower
Willis Tower
October 5, 2017
built
1973
Height
1450
ARCHITECTURE
Skidmore, Owings and Merrill

The Willis Tower, built as and still commonly referred to as the Sears Tower, is a 110-story, 1,450-foot (442.1 m) skyscraper in Chicago, Illinois, United States. At completion in 1973, it surpassed the World Trade Center towers in New York to become the tallest building in the world, a title it held for nearly 25 years and remained the tallest building in the Western Hemisphere until 2014 and the completion of a new building at the World Trade Center site. 

The building is considered a seminal achievement for its architect Fazlur Rahman Khan. The Willis Tower is the second-tallest building in the United States and the 16th-tallest in the world. More than one million people visit its observation deck each year, making it one of Chicago's most popular tourist destinations. The structure was renamed in 2009 by the Willis Group as part of its lease on a portion of the tower's space.

233 S Wacker Dr, Chicago, IL 60606
This Building in the Media
SOM | Willis Tower (formerly Sears Tower)
http://www.som.com/projects/willis_tower_formerly_sears_tower

For years the tallest building in the world, the 110-story Willis Tower (formerly Sears Tower) marked a major step toward exemplifying and defining SOM's belief ...

New Willis Tower observatory attractions may include rappelling from ...
New Willis Tower observatory attractions may include rappelling from ...

Feb 1, 2017 - Blackstone Group LP said it plans to spend $500 million to revamp Chicago's Willis Toweras it tries to draw more tourists and office tenants to ...

Blackstone to Spend $500 Million Remaking Chicago's Willis Tower ...
https://www.bloomberg.com/news/articles/2017-02-01/blackstone-to-spend-500-million-remaking-chicago-s-willis-tower

Feb 1, 2017 - Blackstone Group LP said it plans to spend $500 million to revamp Chicago's Willis Toweras it tries to draw more tourists and office tenants to ...