A view of Willis Tower in downtown Chicago, Illinois

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Size: 5314px × 3543px
Photo credit: © Karen Cowled / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: airline, airlines, building, chicago, corporate, dentons, exterior, hardin, headquarters, midwest, schiff, seyfarth, shaw, sign, skyscraper, tower, travel, united, willis