The 91st floor is an outdoor Observatory. The outdoor observatory is accessible by stairs from the 89th floor. From the outside, it's possible to view the spire at the 508-meter-high apex, but tourists need to be careful of the strong winds. Inside the building, on the 91F, is a small theater showcasing films about the building and the annual New Year fireworks display. The 91st floor is only open on days with good weather conditions.