3John Hancock Center, Chicago – 1,127 feet

The John Hancock Center in Chicago is a towering skyscraper that stands at 100 floors high. It was completed in 1969 and has since become a prominent landmark in the city’s skyline.
The building features a distinctive X-shaped bracing system that adds to its unique design. It houses offices, residential units, and an observation deck that offers stunning views of the city.