Although still commonly referred to as Sears Tower, North America's tallest building was renamed Willis Tower in 2009 after Willis Group Holdings, a global insurance broker whose Midwest offices are housed there. In addition to being North America's tallest building, it is the third-tallest building in the entire world. It was constructed in 1974, designed by architect Bruce Graham. The building's Skydeck is a great place to admire a stunning view.
Address: 233 S Wacker Dr, Chicago
More Info: Btwn Adams St & Jackson Blvd; enter Skydeck on Jackson Blvd (south side of building)
Phone: +1 312 875 9696