Four men had a terrifying few moments when the glass floor they were standing on 103 stories above Chicago in the Willis Tower observation deck appeared to develop cracks. The men were standing in one ...

CHICAGO, Illinois -- With no visitors at the Willis Tower Skydeck right now, some baby chicks took the opportunity to enjoy the view. They ventured out onto the clear observation boxes on the 103rd ...

Skydeck Chicago is decking the halls for the holidays. For the first time ever, they've decorated the lower-level Chicago museum and their observation deck with thousands of twinkling lights and ...

SOM has completed the renovation and transformation of the Willis Tower Skydeck. The project includes an immersive new exhibition and a reimagined observation deck that will allow visitors to explore ...

Completed in 1973 and for 25 years the tallest building in the world, the 110-story Willis Tower has marked a major milestone in its transformation with the completion of a new Skydeck experience ...

NEW YORK - The Blackstone Group LP agreed on Monday to buy the Willis Tower, the former Sears Tower that for 25 years was the world's largest building, in a deal that features an observation deck as a ...

CHICAGO — The owners of the Aon Center, Chicago's third-tallest skyscraper, on Monday unveiled plans for an observatory atop the building, potentially setting up a heated competition for tourist ...

Here's some background information about Willis Tower, formerly the Sears Tower, located in Chicago. Facts: The Sears Tower was the world's tallest building until 1996, when it was surpassed by the ...