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 ...

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, ...

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.

Here’s a look back at what happened in the Chicago area on Feb. 2, according to the Tribune’s archives. Is an important event ...

By 1969, it was the largest retailer in the world. Five years later, it moved into Sears Tower in Chicago, which, at 110 ...