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New Willis Tower observatory attractions may include rappelling from the 103rd floor - Curbed Chicago
Cracks on glass floor 103 stories above Chicago shock four men - Grand Forks Herald | Grand Forks, East Grand Forks news, weather & sports
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Don't look down: Terrifying view from glass box balcony jutting out from skyscraper's 103rd floor | Daily Mail Online
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Visitors' Worst Nightmare Comes True As The Glass Floor On 103rd Floor Shatters Under Their Feet | Bored Panda
While Chicago observation decks tout thrills, LA tower is shutting down its attraction, removing Skyslide - Chicago Tribune
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Walking on Air: The Most Mind-Blowing Glass-Floor Skywalks Around the World | Skydeck chicago, Chicago travel, Willis tower skydeck
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Four Famous Glass Floors and Reasons to Get the Look - Innovate Building Solutions Blog - Home Remodeling, Design Ideas & Advice
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