We are a "mature" English couple, who would like to spend about 30 days travelling from Miami to Boston, and viewing some of the historical, cultural, and scenic gems of the east coast. As part of the trip, we are thinking of doing the Knoxville marathon, which takes place at the beginning of April. Otherwise, we are very open to ideas, but would really like to get to the area of Washington DC, and possibly to the Niagra Falls. We can skip New York City, as I suspect that it would be better to do NYC without a car.
Is there anyone out there who can suggest the outline of an intinerary that I could use as aq starting point?