Hi, I'm a Brit doing the road trip thing for the first time - we're going from Atlanta to Idaho at the end of May and have about 7 days to do it in. Does anyone have any tips on which route to take (40 or 70) and what to do/see along the way? I want to see as much as possible of the countryside and visit as many towns/cities as we can without having to deviate too much from the Interstate as time is quite tight.... any help would be much appreciated!