These are images straight out of a doomsday movie: a huge storm front is gathering over the US city of Chicago. Then hail follows and lightning strikes the Willis Tower. Warren Buffett keeps ...

Standard entry fees are covered by Go City Chicago Cards. Restaurants, shops and restrooms can be found inside Willis Tower. Check out Skydeck Chicago's website for more information about the ...

Landmark opened in 1973 with original tenant Sears Roebuck & Co. CHICAGO, Illinois (CNN) -- Sears Tower is history. As of Thursday, the iconic Chicago, Illinois, skyscraper is now named Willis Tower.