The Sears Tower, now known as the Willis Tower, is an iconic skyscraper located in Chicago, Illinois. Completed in 1973, it was the tallest building in the world for 25 years, standing at 1,450 feet. The tower features a unique design with a series of setbacks and a distinctive black exterior, making it a prominent part of the Chicago skyline. Visitors can enjoy breathtaking views from the Skydeck on the 103rd floor, which offers a glass balcony extending out from the building. The Sears Tower remains a symbol of Chicago's architectural innovation and a popular tourist destination.