CHICAGO -- Video posted to social media showed cracks on the glass floor of The Ledge attraction at Willis Tower (formerly known as the Sears Tower) on Monday. The video was posted by a Skydeck ...

CHICAGO (WLS) -- One step at a time, thousands made strides at Willis Tower to support the Shirley Ryan Ability Lab. Sunday marked the 17th Skyrise Chicago, an endurance event challenging participants ...

Fly above the iconic silhouette of the Windy City with this breathtaking drone footage of the Willis Tower (formerly the Sears Tower). Fly through the heart of Chicago's Loop to witness this ...

An expert committee of architects on Tuesday announced that the structure atop the new One World Trade Center in New York City is a spire and not a broadcast antenna, bringing the building to a height ...

The Willis Tower recently received an upgrade to its antenna lighting that allows one person to use a smartphone or computer to change the lighting color in a matter of seconds. Previously, lighting ...

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 -- 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 ...

Add Yahoo as a preferred source to see more of our stories on Google. One step at a time, thousands made strides at Willis Tower to support the Shirley Ryan Ability Lab. Sunday marked the 17th Skyrise ...