More than 2,000 people climbed more than 1,300 feet to the highest point in Chicago on Sunday, all for a good cause.

One step at a time thousands made strides at Willis Tower to support the Shirley Ryan Ability Lab.ABC7 Chicago is now ...

He’s in shape, so it shouldn’t be a surprise he’s going to attempt to climb the 103 flights of stairs inside Chicago’s Willis Tower this Sunday. “I ran track and cross country in college.” But Zac ...

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 ...

Aon To Buy Willis Towers Watson Insurance -- What Does That Mean For Willis Tower Name? If you're from Chicago and you're older than 30, you once knew the tall and iconic building composed of bundled ...

When the Willis Tower (still called the Sears Tower by some of the more intransigent Chicagoans) was completed back in 1974 it was known around the world as the tallest building on the planet. A title ...