CHICAGO -- The Sears Tower, one of the world's iconic skyscrapers and the tallest building in the U.S., was renamed the Willis Tower on Thursday in a downtown ceremony, marking a new chapter in the ...

The Willis Tower was built with cutting-edge technology and ageless chutzpah, a word that could be translated as an intoxicating sense of omnipotence. When planning for what was originally called ...

Seven men were indicted Thursday by a federal grand jury for planning to bomb a number of buildings including the Sears Tower in Chicago and a federal building in Miami. Two experts discuss the ...

CHICAGO (CBS)-- If you're from Chicago and you're older than 30, you once knew the tall and iconic building composed of bundled tubes at 233 S. Wacker Dr. as the Sears Tower – and as the tallest ...

W A S H I N G T O N, Oct. 1 -- The FBI says it has no specific or credible threat against the Sears Tower in Chicago, but federal officials with access to intelligence information tell ABCNEWS the ...