Enjoyed Savanah. Nashville if you haven't done that - but skip Friday/Saturday night. A lot of 20somethings and bars tend away from country music to whatever those kids listen to these days, although you can still find some at the smaller places). Otherwise, Sunday is so chill, as are the weekdays.
Haven't been, but have heard Ashville, NC is awesome, particularly if you are into breweries. But, news about spiralling crime in downtown Ashville lately leads me toward waiting on that trip. Used to stay in downtown Chicago. Hot Springs, AK was fun, particularly if the ponies are running. Otherwise, its about a day trip rather than a destination.
Depending how old you are, our 20 something kids and their friends love the area just north of downtown Dallas. I forget what its called. They also go to the stockyards area, which might be Arlington or Fort Worth? or maybe still Dallas proper.
Probably our favorite place in CA is the stretch from Huntington Beach down to Laguna Beach. Any chance we get, we spend several days in Laguna Beach area. Gulf Coast of Mississippi, Alabama and Florida over to about Panama City is also a can't miss.
Visiited Boston 35 years ago. Always mean to get back there to visit more historical sites there - if you go, do a day trip up the coats to Salem (we went Halloween weekend, which was fun).