Please suggest a route for an autumn visit of 4-6 days from Alexandria to mountain views/roads and back to Alexandria. We are 4 seniors driving with hopes of visiting historic places and experiencing natural beauty of mountains. We have visited Charlottesville and Williamsburg already but not Richmond. We would like to find beautiful accommodations as well and perhaps stay several nights in a promising central spot. We haven't been able to judge how far we can drive in the mountains before we need to circle back. Help is appreciated.