Willis Tower (Sears Tower)

The Willis Tower, formerly known as the Sears Tower, is a famous skyscraper in Chicago and one of the tallest buildings in the world. Standing at 1,450 feet with 110 floors, it features a distinctive design with bundled glass and steel tubes that provide stability and strength. Completed in 1973, it was the tallest building globally for over a decade. Today, it offers office space, observation decks with stunning city views, and attracts millions of visitors. The tower is an iconic symbol of Chicago's skyline and a feat of engineering and architectural innovation.