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Sears tower in Chicago at night by rommelholmes, via Flickr | Chicago travel, Chicago attractions, Willis tower skydeck
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Visitors on the 412 meter-high observation deck, Skydeck, Willis tower, formerly Sears Tower, Chicago, Illinois Stock Photo - Alamy
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Tourists in glass balcony skydeck observation deck view Chicago skyline103rd floor of the Willis Tower Sears Tower Stock Photo - Alamy
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Chicago skyscraper's viewing deck cracks under tourists' feet – 1,353ft up | Architecture | The Guardian
![File:Glass Balconies, Looking West from Willis Tower Skydeck, Chicago, Illinois (9179377925).jpg - Wikimedia Commons File:Glass Balconies, Looking West from Willis Tower Skydeck, Chicago, Illinois (9179377925).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/5/56/Glass_Balconies%2C_Looking_West_from_Willis_Tower_Skydeck%2C_Chicago%2C_Illinois_%289179377925%29.jpg)