Observation deck
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An observation deck, observation platform, or viewing platform is an elevated sightseeing platform usually situated upon a tall architectural structure, such as a skyscraper or observation tower. Obse
The Edge at 30 Hudson Yards in Midtown Manhattan, containing optically transparent flooring, looking toward Lower Manhattan, opened in 2020
General view of Paris from the rooftop terrace of the Arc de Triomphe, c. 1840.
The 10 m observation deck of Ronda, Spain, overlooks the Depression of Ronda plain over 100 m below.
A multi-level tree house in Cape Town, South Africa, with an observation deck on top.
Willis Tower
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The Willis Tower, formerly known and still commonly referred to as the Sears Tower, is a 110-story, 1,451-foot skyscraper in the Loop of Chicago, Illinois, United States. Designed by architect Bruce G
Observation deck
…383.2 metres (1,257 ft).. 11 CN Tower 1976 Concrete tower Toronto 446.7 553.3 Two additional observation decks at 342 m (outdoor) & 346 m (indoor). 12 Willis Tower 1974 Skyscraper Chicago 412.7 527.3 103rd floor; it is the highest observation deck (skydeck) and highest skywalk (skydeck glass balconies) in the…
The Willis Tower as seen from the west in 2024
The Sears Tower (now the Willis Tower) during its construction in 1973
The tower in 1978, after its completion
The tower at night in 2009