Museum of the Shenandoah Valley in Winchester, VA
https://www.themsv.org/
Monticello (Thomas Jefferson)
https://www.monticello.org/
I moved these to their own post, because either would be a nice highlight to a scenic drive down the Blue Ridge Parkway. From my house, it's 3 to 5 hours each way, depending on how much of the time you take the Blue Ridge Parkway.