The Hermitage, the home of General and President Andrew Jackson is a well-maintained mansion on a beautiful site. The staff is knowledgeable and very friendly. I stopped at the Hermitage is most worthwhile. In addition to the mansion, be sure to visit the museum at the entrance and take time to walk the grounds.
To see the sunset go on a boat. You'll be surrounded by beautifully reflected lights. It's beautiful from the shore as well, where you can see all the colors.