I am planning to take a road trip at the end of June from Knoxville to Toronto and then from Toronto to Knoxville via NYC and DC (i.e. Knoxville-Toronto-NYC-DC-Knoxville). I wanted to get some suggestions on visiting some attractions (preferably, historical and/or natural and also something interesting to my 6-yr old kid) on the way.
The following is my intended driving timeline (flexible):
From Knoxville to Toronto ( driving in 2 days).
From Toronto to NYC (driving in 2 day)
From NYC to DC (driving in 1 day)
From DC to Knoxville (driving in 2 day)
I would greatly appreciate your comments and suggestions.