Road Trip Stop - Nashville!

On the way to Houston we stopped in Nashville very quickly, just to drive through the downtown and get some coffee.  This is the first time I've ever been anywhere in Tennessee!  The city looks like it's a cool scene - colorful and lively; I've definitely heard great things about it, and the state seems to be beautiful.  It's not far from Lexington, so maybe it would be good to explore it more thoroughly someday...  Ever been there and have a favorite spot?  We're driving by on the way back and might need to stop again!