Trading firm IMC is closing in on a deal that would make it the second-biggest tenant in the city's tallest building.

In an annual February tradition, some couples had the honor of exchanging or renewing vows on Sunday morning at the top of ...

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 ...

A Dutch trading firm is expanding its presence in Chicago’s most iconic skyscraper, adding space for the second time while most office tenants in the Loop are doing the opposite. IMC struck a deal to ...

Love was in the air Sunday morning in downtown Chicago. Really, really high in the air — and also on the ledge.

CHICAGO (WLS) -- First, there was the glass ledge addition to the Skydeck at Willis Tower. Now, the company that owns the city's tallest building wants to let guests rappel down a rope 103 floors ...

Sunday marked the 17th Skyrise Chicago, an endurance event challenging participants to climb up more than 100 flights. Participants climbed to the Willis Tower Skydeck, a total of 2,149 stairs. "I was ...

CHICAGO -- A Chicago couple got engaged New Year's Eve on the Skydeck at Willis Tower. The proposal was captured on video and posted on the Facebook page of sister station WLS. The couple was taking ...

Expectant parents looking to go big for their gender reveal, look no further, as the Willis Tower has you covered. The tower wants to help with your announcement by hosting what's described as a "once ...

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 ...