The 4th Floor Observation Deck offers a breathtaking 360-degree view stretching from downtown to the Great Smoky Mountains including World’s Fair Park, the Tennessee River, and the University of Tennessee Campus. A 1982 World’s Fair timeline, gallery, memorabilia, and gift shop await visitors. All guests above the age of 12 require a ticket which can be purchased online for $5. Children ages 12 and under are admitted for free with a paying adult.