“This extension reflects our continued belief in the strength of Willis Tower,” a ... opened its first Chicago-area site in 2023 and plans to open its third Illinois facility in River North ...

More than 1.7 million people make their way to Willis Tower's Skydeck ... able to see far beyond Chicago's borders to Indiana, Michigan, Wisconsin and other parts of Illinois.

It was designed by Architect William W. Boyington. Chicago is home to the Willis Tower, formerly known as Sears Tower, which is one of the largest skyscrapers in the world. The 110-story building ...