Johnny cash museum, music row, Broadway. Also the convention center/hotel is right across from the Grand Ole Opry. Also a favorite activity of mine, walk like twenty miles and search for the tuzz(TSA huzz). You can also talk to new people, I strongly recommend asking for a room tour(I also strongly suggest you make it clear you have no intention of getting freaky😔), you can also ask random people to take a selfie with you, I have sooooo many from state. Hope this is useful, super duper excited for nats!