Some things really are timeless. The Jefferson Pools in Warm Springs, Virginia clearly falls into this category. Also known as the Warm Springs Bathhouses or the Warm Springs Pools, the "baths" are a part of the renowned Homestead Resort in Hot Springs, Virginia. The Gentlemen's Pool House is the oldest spa structure in the U.S. (and it's age shows but therein lies part of its charm). The building was erected in 1761 and the 98 degree spring water feels tremendous on an icy cold day. It is much more rustic now than this picture. The roof has come off, the white paint is peeling and you can see through the boards in the structure. It is need of much repair, but you won't worry too much about that once you get in the water. Whispering is preferred, no swimming, and there were no children in the baths when I was there. This is a tranquil place to savor.
There is a second pool house, the Ladies' Pool House, built in 1836. It is shallower than the men's pool. Thomas Jefferson was a frequent visitor as is rumored to have designed the men's structure (and it looks like something he would have created).
Depending on the time of day, you can bathe with or without your suit. Certain times are co-ed, others are not.
A trip to rustic Bath County would not be complete without a trip to the Pools. You can find out more information here.