I'm planning on taking an extended weekend trip in early July to Atlanta from Philadelphia. I want to head thru eastern Tennessee if possible. Any suggestions as to where I should stop along the way? I was going to head south on I-95 and eventually turn off west on I-85 in North Carolina and just continue west on Route 421 until I reach Boone, NC and then head further west on route 194 into Johnson City, TN then onto Route 11E west towards I-81 south then I-40 and finally I-75 into Atlanta...it will take me a little longer than a regular route but I think it might be worth it. Any ideas as to what to see while I'm driving down there?