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. Sunday marked the 17th ...

CHICAGO (WPVI) -- Video posted to social media showed cracks on the glass floor of The Ledge attraction at Willis Tower in Chicago on Monday. The video was posted by a Skydeck visitor on Facebook. A ...

CHICAGO -- Video posted to social media showed cracks on the glass floor of the Ledge attraction at Willis Tower on Monday. The video was posted by a Skydeck visitor on Facebook. A spokesperson for ...

CHICAGO (WLS) -- Aon, a global financial risk consultant company, is planning to buy out competitor Willis Towers Watson. The deal, valued at about $30 billion, could potentially impact the name of ...

Alejandro Garibay CHICAGO (WPVI) -- The Willis Tower Skydeck's The Ledge cracked - but it's supposed to, according to a spokesperson, who said only the protective coating of the glass box that ...

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 ...

CHICAGO (WLS) -- Sources say the Blackstone Group is the possible buyer of Chicago's iconic Willis Tower. The private equity firm is said to have a preliminary deal to pay nearly $1.5 billion for the ...

It's been known as the Sears Tower since it opened in 1973, but the tallest building in the United States is set to change its name to Willis Tower. The London-based insurance brokerage Willis Group ...

The latest appraisal for Chicago's Willis Tower values the high-rise at $1.03B – about $270M less than the $1.3B balance on Blackstone's loan for the property. The valuation also represents a steep ...