Willis Touer

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Willis Tower
Sears Tower ss.jpg
Umwhile names Sears Tower (1973–2009)
General information
Type Office, observation, communication
Airchitectural style International
Location 233 S. Wacker Drive
Chicago, Illinois 60606
United States
Coordinates 41°52′44″N 87°38′09″W / 41.8789°N 87.6358°W / 41.8789; -87.6358Coordinates: 41°52′44″N 87°38′09″W / 41.8789°N 87.6358°W / 41.8789; -87.6358
Construction stairtit 1970
Completed 1973
Airchitectural 442.1 m (1,450 ft)[1]
Tip 527 m (1,729 ft)[1]
Flat coont 108[2] (+3 basement floors)
Lifts 104,[1] wi 16 double-decker elevators, made bi Westinghouse, modernized bi Schindler Group
Design an construction
Airchitect Skidmore, Owings and Merrill[1] (Fazlur Khan & Bruce Graham)

The Willis Touer or formally cawed Sears Touer is a 108-flat landmark skyscraper in the Chicago aurie, in Americae.

References[eedit | eedit soorce]

  1. 1.0 1.1 1.2 1.3 1.4 "Willis Tower - The Skyscraper Center". Council on Tall Buildings and Urban Habitat. 
  2. The tower has 108 stories as counted by standard methods, though the building's owners count the main roof as 109 and the mechanical penthouse roof as 110. Emporis.com Retrieved on June 7, 2008