Here’s some background information about Willis Tower, formerly the Sears Tower, located in Chicago. Facts The Sears Tower was the world’s tallest building until 1996, when it was surpassed by the ...

Real estate magnate Joseph Chetrit, developer Joseph Moinian and Skokie-based American Landmark Properties bought the tower ...

Blackstone announced Monday that it is buying Chicago’s Willis Tower, once called the Sears Tower, from 233 South Wacker LLC for an undisclosed amount. The Willis Tower is the second-tallest ...