TenOC wrote:
Nashville is a fantastic place to live except for one problem there's nothing to see within 500 miles. Depending on what you have seen in your other travels, you might want to take in Yellowstone, Grand Teton, the national parks of Utah and Monument Valley. Then you have 2 days hard-driving to Nashville.
Even in mid April, if you hit bad weather simply hold up for a day and continue trip. So any of the many routs from Washington to Nashville should work for you.
I believe you are sadly mistaken about what there is to see and do in the beautiful state of Tennessee.