How the west was won on 57th Street, tallest roof in the western hemisphere.
Mojo Rising
Once the world's tallest building from 1974 to 1996, the 1,450-foot-tall Willis Tower in Chicago is, little by little, kicked out from top placements in various height-record categories by the new kids on blocks all over the world.
After losing the overall height crown to the twin Petronas Towers in Kuala Lumpur in the mid-90s (when it was still the Sears Tower), the 110-story Modernist structure was ejected from the elusive Top 10 Tallest Buildings club when the 2,073-foot-tall Shanghai Tower was completed, and now, Willis Tower had to pass on also the title of highest roof in the Western Hemisphere to a young, skinny New Yorker on Billionaires' Row, the soon-to-be-completed (and tallest residential building on the planet) Central Park Tower.
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