Last summer my wife and I visited the states for the first time and spent 3 weeks driving route 66. It was the best holiday we'd ever had and now have the bug!
This year we thought we'd look at the eastern states and so we've already booked a flight to Boston, returning from Miami. We have 3 weeks to get from Boston to Miami but don't know where to begin. We know we'd like to visit New York, Washington, and Philadelphia but don't know much else!
Whereas route 66 was very much about kitsch and americana we're not sure of the vibe of travelling the eastern states. We're both interested in seeing some historical sites (land runs, civil war) and taking the minor roads. I'm also keen on seeing some of the "dixie" states and the deep south (athough my wife needs some convincing).
Any tips or "must-sees?