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ID: 700000053Record Type: Built Work
Willis Tower (skyscraper; Skidmore, Owings and Merrill (American, established 1939), f...; completed in 1973)
Note: Overlooks the west side of Chicago's downtown Loop. In 2009, the London-based insurance brokerage Willis Group Holdings secured the naming rights as part of an agreement to lease space.
Titles:
Willis Tower (preferred,C,U,D,LC,English-P,U,U,U)
Sears Tower (H,U,FO,undetermined,U,U)
Catalog Level: item
Work Types:
skyscraper [300004809] (preferred)
..... (Objects Facet, Built Environment (Hierarchy Name), Single Built Works (Hierarchy Name), single built works (built environment), <single built works by specific type>, <single built works by form>, <single built works by form: height>, multistory buildings, high-rise buildings)

Classifications:
architecture (preferred)
Modern art

Creation Date: completed in 1973

Creator Display:
Skidmore, Owings and Merrill (American, established 1939), for Sears Roebuck and Company (American retail company, founded 1886) [preferred,VP]
architectural firm Skidmore, Owings & Merrill (American architectural firm, established 1939) [500045910]
architect Graham, Bruce (American architect, 1925-2010) [500074517]
client Term Not Found [500231103]
Locations:
Chicago [7013596] Cook county (county), Illinois (state), United States (nation), North and Central America (continent), World (facet) (Geographic)
Address Note: 233 South Wacker Drive (Chicago, Illinois, United States)
Display Materials: steel frame, clad in bronze-tinted glass and stainless aluminum
steel (alloy) [300133751]
.......(Materials Facet, Materials (Hierarchy Name), materials (matter), <materials by composition>, inorganic material, metal, <metal by composition or origin>, <iron and iron alloy>, iron alloy)
glass (material) [300010797]
.......(Materials Facet, Materials (Hierarchy Name), materials (matter), <materials by composition>, inorganic material)
aluminum (metal) [300011015]
.......(Materials Facet, Materials (Hierarchy Name), materials (matter), <materials by composition>, inorganic material, metal, <metal by composition or origin>, nonferrous metal, <aluminum and aluminum alloy>)
steel frame construction [300015341]
.......(Activities Facet, Processes and Techniques (Hierarchy Name), <processes and techniques (processes and techniques)>, <processes and techniques by specific type>, <additive and joining processes and techniques>, assembling (additive and joining process), construction (assembling), <construction by form>)
curtain walls (nonbearing walls) [300002563]
.......(Objects Facet, Components (Hierarchy Name), components (objects), <components by specific context>, architectural elements, <structural elements and components for structural elements>, structural elements, enclosing structural elements, <walls and wall components>, walls, <walls by function>, nonbearing walls)

Dimensions: height to the top of the roof: 442 m (1,450 feet); height to the highest occupied floor 436 m (1,431 feet); 110 stories; 418,064 square m of office and commercial space (4.5 million square feet)
General Subject:
architecture (preferred )

List/Hierarchical Position:
..... Top of the CONA hierarchy
.......... Built Work
Sources and Contributors:
Willis Tower........ [VP]
........ LC Subject Authority Headings [online] (2002-) sh 94007667, accessed 15 September 2010
........ Encyclopedia Britannica Online (2002-) "Willis Tower," accessed 15 September 2010
........ Sears Tower is Renamed, BBC News Online (2009)
Sears Tower........ [VP]
........ Encyclopedia Britannica Online (2002-)
Subject: ....... [VP]
Note:
English ..... [VP]
..... Sears Tower is Renamed, BBC News Online (2009)
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