β¨Willis Tower | A Must-Visit Legendary Landmark in Chicago π₯³
Hey there, everyone! π Today, I'm super excited to introduce you to the mind-blowing Willis Tower! π Located in Chicago, Illinois, USA, the Willis Tower once held the title of the world's tallest building! πποΈ Built in 1974 and originally named the Sears Tower, it was officially renamed the Willis Tower in 2009. From an architectural standpoint, it's a perfect blend of art and technology! π Designed by architect Bruce Graham and structural engineer Fazlur Khan, the tower employs a bundled tube structural system. The entire building is treated as a cantilevered bundled tube space structure. This innovative design not only tackles the issue of wind resistance in high-rise buildings but also gives the tower a unique appearance, resembling nine square hollow tubes of varying heights clustered together. The facades in different directions present diverse yet simple and stable forms. Standing at a total height of 442.3 meters, the tower boasts 108 floors above ground and 3 floors below, with a total floor area of 416,000 square meters. ποΈ It's equipped with 102 elevators and advanced fire safety systems, ensuring the daily convenience and safety of its occupants. Now, here's the highlight you can't miss: the observation deck on the 103rd floor! π Standing at a staggering 412 meters above ground, on a clear day, you can see four states of the USA from here, taking in the breathtaking panorama of the entire city of Chicago. The feeling is truly indescribable! π€© Admission tickets cost $21, and the tower is open from 8:00 AM to 10:00 PM. You can plan your visit according to your schedule. In conclusion, the Willis Tower is definitely worth a visit, allowing you to experience the unique charm of Chicago and the grandeur of architecture! π #WillisTower #ChicagoTourism #ArchitecturalArt