The Shanghai Tower, designed by the global architecture firm Gensler, is officially recognized as the world's third tallest ...

Tom Liravongsa has proposed converting the vacant office space in the Pittsfield Building into 214 residential units.

At 110 stories, the Willis Tower bills itself as the fifth-tallest office building in the world (for ... including the $1.95 billion sale of New York City's Waldorf Astoria hotel to Anbang ...

So, what is the tallest building in the U.S. and what are its closest competitors? Each towering skyscraper tells a story.