Willis Tower, Chicago, IL
Formerly named the Sears Tower, Chicago’s tallest skyscraper was built in 1970 by Sears, Roebuck & Co, the largest retailer globally then. The building dominates the Windy City’s skyline and, at 108 stories, is the US’s second-tallest building, surpassed only by NYC’s One World Trade Center.
The White House, Washington, DC
As the workplace and residence of the US President, this mansion designed by Irish-born architect James Hoban spans a modest 55,000sqft. Like the country it represents, the reasonably young house has survived multiple renovations, all-consuming fire, and 43 peaceful transfers of power for over 200 years.
