Sunsphere - Knoxville

Steve’s take

A gold sphere on a tower left over from the 1982 World's Fair. It's free to go up, the observation deck has decent views of the Smokies, and the whole thing takes about twenty minutes. Your kids will ask 'why is there a gold ball on a stick' and honestly, that's a fair question. The surrounding World's Fair Park has a splash pad in summer that'll burn fifteen minutes of energy. Quick Knoxville stop if you're passing through on I-40.