TIME cities

Willis Tower Observation Deck Cracks

Tourist saw their lives flash before their eyes, as the glass cracked beneath their feet.

A protective coating on a glass sightseeing box at the Willis Tower in Chicago has been replaced after cracking Wednesday night. Officials said no one was ever in danger, but for tourists, the experience was terrifying.

“Because you can see through it, obviously there’s the psychological effect that oh my gosh, something broke. But nobody was ever in danger,”Architectural engineer Michael Swanberg said.

There is a thick panel of glass that didn’t break that is designed to withstand 10-thosand pounds, which mean that thankfully tourists were never in any real danger.


Your browser is out of date. Please update your browser at http://update.microsoft.com


Dear TIME Reader,

As a regular visitor to TIME.com, we are sure you enjoy all the great journalism created by our editors and reporters. Great journalism has great value, and it costs money to make it. One of the main ways we cover our costs is through advertising.

The use of software that blocks ads limits our ability to provide you with the journalism you enjoy. Consider turning your Ad Blocker off so that we can continue to provide the world class journalism you have become accustomed to.

The TIME Team