The Sunsphere is a 266-foot (81 m) tall hexagonal steel truss structure located in World's Fair Park in downtown Knoxville, Tennessee, United States. It is topped with the 75-foot (23 m) gold-colored glass sphere that served as the symbol of the 1982 World's Fair. Directly across a man-made pond from the Tennessee Amphitheater, they are the only remaining structures from the fair.