The expansive floor plan at United Airlines' suburban Chicago building allows for ... about the leasing challenges facing the former Sears Tower during the pandemic.

British insurance broker Willis Group Holdings Ltd. will lease space in the iconic Sears Tower, changing the building's name to Willis Tower. Video courtesy of Fox News.

It was designed by Architect William W. Boyington. Chicago is home to the Willis Tower, formerly known as Sears Tower, which is one of the largest skyscrapers in the world. The 110-story building ...