John Hancock Center

The John Hancock Center is a 100-story, 1,128-foot[7] supertall skyscraper located in Chicago, Illinois. Located in the Magnificent Mile district, the building was officially renamed 875 North Michigan Avenue in 2018.

875 North Michigan Avenue
875 North Michigan Avenue in October 2015, viewed from the Willis Tower
John Hancock Center is located in Chicago metropolitan area
John Hancock Center
Location within Chicago metropolitan area
John Hancock Center is located in Illinois
John Hancock Center
John Hancock Center (Illinois)
John Hancock Center is located in the United States
John Hancock Center
John Hancock Center (the United States)
General information
Architectural styleStructural Expressionism
LocationChicago, Illinois, U.S.
Address875 North Michigan Avenue (additional entrances at 175 East Delaware Place and 170 East Chestnut Street)
Coordinates41.8988°N 87.6230°W / 41.8988; -87.6230
Construction started1965
CostUS$100 million[1]
($798 million in 2022 dollars[2])
OwnerThe Hearn Company
Architectural1,128 ft (344 m)[3]
Tip1,500 ft (457 m)[3]
Roof1,128 ft (344 m)
Top floor1,054 ft (321 m)[3]
Observatory1,030 ft (314 m)[3]
Technical details
Floor count100[3]
Floor area2,799,973 sq ft (260,126 m2)[3]
Lifts/elevators50, made by Otis Elevator Company[3]
Design and construction
Architect(s)Fazlur Rahman Khan
Skidmore, Owings and Merrill
DeveloperJohn Hancock Insurance
Structural engineerSkidmore, Owings & Merrill LLP (SOM)
Main contractorTishman Construction Co.

The skyscraper was designed by Peruvian-American chief designer Bruce Graham and Bangladeshi-American structural engineer Fazlur Rahman Khan of Skidmore, Owings and Merrill (SOM).[8] When the building topped out on May 6, 1968,[1] it was the second-tallest building in the world after the Empire State Building, and the tallest in Chicago. It is currently the fifth-tallest building in Chicago and the thirteenth-tallest in the United States, behind the Aon Center in Chicago and ahead of the Comcast Technology Center in Philadelphia. When measured to the top of its antenna masts, it stands at 1,500 feet (457 m).[9] The building is home to several offices and restaurants, as well as about 700 condominiums, and at the time of its completion contained the highest residence in the world. The building was named for John Hancock Mutual Life Insurance Company, a developer and original tenant of the building, which itself was named for the U.S. Founding Father John Hancock.[10] In 2018 John Hancock Insurance, years after leaving the building, requested that its name be removed; the owner is seeking another naming rights deal.[10]

From the 95th-floor restaurant, diners can look out at Chicago and Lake Michigan. The observatory (360 Chicago),[11] which competes with the Willis Tower's Skydeck, has a 360° view of the city, up to four states, and a distance of over 80 miles (130 km). 360 Chicago is home to TILT, a moving platform that leans visitors over the edge of the skyscraper to a 30-degree angle,[12] a full bar with local selections,[13] Chicago's only open-air SkyWalk, and also features free interactive high-definition touchscreens in six languages.[14] The 44th-floor sky lobby features the world's highest indoor swimming pool measured from height above ground level.

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