Willis Tower

E2926

landmark office building skyscraper

Willis Tower is a 110-story skyscraper in downtown Chicago that was once the tallest building in the world and remains an iconic feature of the city's skyline.

Aliases (4)

Statements (56)

Predicate	Object
instanceOf	landmark → office building → skyscraper →
address	233 South Wacker Drive →
annualVisitors	over 1 million →
antennaSpireHeight	1729 ft → 527 m →
architect	Bruce Graham → Fazlur Rahman Khan →
architecturalHeight	1450 ft → 442.1 m →
architecturalStyle	International Style →
architectureFirm	Skidmore, Owings & Merrill →
city	Chicago →
completionDate	1973 →
constructionStartDate	1970 →
country	United States →
developer	Sears, Roebuck & Co. →
elevatorCount	100+ →
engineer	Fazlur Rahman Khan →
feature	The Ledge glass balconies →
floorArea	approximately 4.5 million sq ft → approximately 416000 m² →
floorCount	110 →
formerName	Sears Tower →
hasObservationDeck	Skydeck Chicago →
hasPostalCode	60606 →
heldTallestBuildingInTheWorldFrom	1973 →
heldTallestBuildingInTheWorldUntil	1998 →
isTallestBuildingInChicago	true →
isTallestBuildingInIllinois	true →
isTallestBuildingInTheUnitedStatesByRoofHeight	true →
isTouristAttraction	true →
locatedInTheAdministrativeTerritorialEntity	Cook County →
location	Chicago → Illinois → United States →
managementCompany	EQ Office →
materialUsed	aluminum → glass → steel →
namingRightsHolder	Willis Group Holdings →
neighborhood	Loop →
observationDeckFloor	103 →
observationDeckHeight	412 m →
openingDate	1973 →
owner	Blackstone Group →
partOf	Chicago skyline →
renamed	2009 →
status	completed →
structuralSystem	bundled tube structure →
surpassedBy	Petronas Towers →
topFloorHeight	412.7 m →
uses	observation → office →
wasTallestBuildingInTheWorld	true →

Referenced by (22)

Subject (surface form when different)	Predicate
Bruce Graham → Bruce Graham ("Sears Tower") → Skidmore, Owings & Merrill →	notableWork
Bruce Graham → Bruce Graham ("Sears Tower") →	designed
Chicago, Illinois, United States → Loop →	hasLandmark
200 South Wacker Drive → LaSalle Street Station →	locatedNear
311 South Wacker Drive → Monroe Street →	near
Willis Group Holdings →	acquiredNamingRightsOf
Sears, Roebuck & Co. ("Sears Tower") →	commissionedBuilding
Chicago Loop →	contains
Sears, Roebuck & Co. ("Sears Tower, Chicago") →	formerHeadquartersLocation
Willis Tower ("Sears Tower") →	formerName
Willis Tower ("Skydeck Chicago") →	hasObservationDeck
AIA Twenty-five Year Award ("Sears Tower (Willis Tower)") →	hasRecipient
Loop →	hasSkyscraper
Willis Group Holdings ("Sears Tower") →	namingRightsFormerName
Willis Group Holdings →	notableBuildingAssociation
Sears, Roebuck & Co. →	SearsTowerLaterRenamed