Left photo: Sears Tower became the tallest building in Chicago, surpassing the John Hancock Center, seen in the background, when construction continued in November 1972. (Charles Osgood/Chicago ...

In 1973, Sears moved into Chicago's Sears Tower—which opened as the tallest building in the world. Nearly two decades later, ...

More than 1.7 million people make their way to Willis Tower's Skydeck Chicago each year, and it's easy to see why. Occupying the 103rd floor – that's nine floors higher than 360 CHICAGO – of ...

British insurance broker Willis Group Holdings Ltd. will lease space in the iconic Sears Tower, changing the building's name to Willis Tower. Video courtesy of Fox News.

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 ...

Vintage Chicago Tribune Special Edition ... Operations moved to the new Sears Tower headquarters in 1973, then to Hoffman Estates in 1995.

Loop site Chicago developer Frankel & Giles plans to build condos on part of Franklin Point, an ex-rail yard south of the Sears Tower. Frankel & Giles has agreed to buy two acres at Harrison and ...