If you drive along I-81, the “spine” of Virginia, it’s hard to miss the billboards advertising various cavern attractions. I’ve seen them many times over the decades that I’ve been up and down that road, but never stopped to visit.
If you drive along I-81, the “spine” of Virginia, it’s hard to miss the billboards advertising various cavern attractions. I’ve seen them many times over the decades that I’ve been up and down that road, but never stopped to visit.