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Hidden Architecture » Willis Tower (formerly Sears Tower) - Hidden Architecture
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Sears Tower - Fazlur Khan - Structural Artist of Urban Building Forms
Sears Tower: A Building Book from the Chicago Architecture Foundation: Jay Pridmore, Chicago Architecture Foundation, Hedrich-Blessing: 0717195196868: Amazon.com: Books
WILLIS TOWERpresentation PDF | PDF | Deep Foundation | Civil Engineering
SOM Completes Transformation of Chicago's Skydeck, Continuing Decades-Long Design Stewardship of Willis Tower – SOM
Sears Tower: A Building Book from the Chicago Architecture Foundation: Jay Pridmore, Chicago Architecture Foundation, Hedrich-Blessing: 0717195196868: Amazon.com: Books
In 150 years, what does Chicago do with the Willis (Sears) Tower? | Chicago Architecture Center
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View of a construction crew laying the foundation forms at the Sears... News Photo - Getty Images
Willis Tower - Wikipedia
