chicagohistorymuseum: The Sears Tower during construction, c. 1972. Upon completion, it was the worl
chicagohistorymuseum: The Sears Tower during construction, c. 1972. Upon completion, it was the world’s tallest building, a title it held until 1997. It was renamed the Willis Tower in 2009. Hedrich-Blessing Collection. Read more about the building’s history.Purchase a copyE-mail rightsrepro@chicagohistory.org and give them this number: HB-36150-H2Connect with usVisit the Museum’s websiteShop our PhotoStoreSearch our digital collection -- source link