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The view from Chicago's 'Ledge' gets more dizzying





CHICAGO, July 1 (Reuters) - The view from the tallest skyscraper in the Western Hemisphere just got better.

Some may experience a floating sensation when stepping into one of four glass boxes that jut out from the indoor observation deck at the Sears Tower.

"At first I was kind of afraid but I got used to it," said Adam Kane, 10, a visitor from Alton, Illinois, as clouds drifted past. "Look at all those tiny things that are usually huge."

"The Ledge," unveiled on Wednesday, invites visitors to step onto a 1-1/2 inch-thick (4 cm) glass floor suspended 1,353 feet (412 metres) in the air.

"We did studies that showed a 4-foot-deep (1.2 metres) enclosure makes you feel like you're floating since there's only room for one row of people, not two," architect Ross Wimer said. The enclosures are 10 feet (3 metres) high and 10 feet wide.

The popular deck attracts 25,000 visitors on clear days. They each pay $15 to take an elevator ride up to the 103rd floor of the 110-story office building that opened in 1973.

Architects considered creating an open-air deck, like the one atop New York's Empire State Building, but the rush of air that would have been created could compromise the skyscraper's mechanical systems, Wimer said.
 

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That explians why i couldnt go to the top floor then! Good idea though done a million times with glass floors and bridges over grand canyons. It is something that i didnt notice in Chicago though so it another offering for the city.
 

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Ars longa, vita brevis
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Wow, the view from the top of Sears is magnificent as it is! What an interesting idea, to apply this concept to a skyscraper.
 

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Construction CA
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Cool.

If it's anything similar to that of Eureka Tower here in Melbourne, it should be quite an experience.

I'd be curious to know a little more about the construction/installation progress, considering the level of wind at that height.
 

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Great idea.

But how does it look from the outside? I guess it's hard to spor them since they are transparent.
 
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