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![Willis Tower - [Chicago, IL] - [1,353 Ft.] - [Glass Floor] - Tallest Observatory In America | Skydeck chicago, Chicago travel, Willis tower skydeck](https://i.pinimg.com/originals/6d/93/16/6d93167788fe3a194ff3c613261ff7de.jpg "Willis Tower - [Chicago, IL] - [1,353 Ft.] - [Glass Floor] - Tallest Observatory In America | Skydeck chicago, Chicago travel, Willis tower skydeck")
Willis Tower - [Chicago, IL] - [1,353 Ft.] - [Glass Floor] - Tallest Observatory In America | Skydeck chicago, Chicago travel, Willis tower skydeck
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Observation Decks in Chicago | Attractions with a View | Choose Chicago
Cracks appear on floor of glass viewing platform in Chicago's Willis Tower - ABC News
Willis Tower Glass Platform – Chicago, Illinois - Atlas Obscura
Chicago skyscraper's viewing deck cracks under tourists' feet – 1,353ft up | Architecture | The Guardian
