
Some, like the Cyrus McCormack Farm in Steeles Tavern, VA (not too far from Lexington) simply let you use the grounds; everything else is up to you and your vendors to provide. Others, like Charlottesville's Ash Lawn (James Monroe's home) can provide everything, including on-site kitchen facilities for your caterer, tents, a pavilion... basically it's a full-service location.
Finding a spot in your area is easy. Use search terms like "historic wedding site fairfax" or "wedding location historic richmond" and you can find the local government site listing venues. For example, here's the site for Fairfax County, and here's the site for Prince William County. Another added bonus: Costs also tend to be somewhat lower than at for-profit locations.
