Old Chicago Main Post Office Redevelopment
The plan includes several towers, the tallest one being a proposed 120-story mixed use twin tower skyscraper that will stand about  high to the roof, which would make it the tallest building in the United States, over  taller than the Willis Tower, and will contain office, residential, and hotel space. It will also include two 60-story residential towers as well as a 40-story hotel.