Mentioned by Busy Tourist
32 Best & Fun Things To Do In Knoxville (Tennessee)
"In 1982, the city of Knoxville hosted the World’s Fair, sloganed Energy Turns The World. The organizers worked together with architects local to the area to create an impressive structure that would thematically bring the sun – the greatest source of energy – down to earth and into what we now call World’s Fair Park. The result of this project was The Sunsphere, a huge round object fitted with reflexive glass pane panels, layered with dusted gold, balanced on a tower of hexagonal shape."