I'm flying into Nashville at 7:30 am on a Tuesday in November, picking up a rental car and driving about an hour south of the city for a 2 hr meeting then driving back up to Nashville. Plan on being back in town early afternoon. I need to drop the rental car back off about 8:30 pm for a 10pm flight home. So, what do you recommend to fill 8 hrs of free time? I am traveling alone as a 35 yo female. I'm not afraid to eat alone or tour solo. TIA!