More than 1.7 million people make their way to Willis Tower's Skydeck Chicago each year ... this platform is made entirely of glass – even the floor. Travelers also liked the video screens ...

The tower owners claim the protective glass worked as designed. But will the experience ever be the same? Stare into the eerie soul of some of the world's tallest skyscrapers with Iván Navarro's ...

Skydeck Chicago is letting four couples tie the knot, or renew their vows, at the top of the Willis Tower. The ceremony will occur on The Ledge, one the five glass floor balconies that just out ...

Owners of Willis Tower, Prudential Plaza and Aon Center received ... The lease bucks the broader trend in downtown Chicago, where many companies are shedding space, pushing the vacancy rate ...