I recently found out you can do that on one of the roads to the entrance of the Smithsonian Udvar-Hazy museum in Dulles. Nowhere near as Gravely Point, but it w

I recently found out you can do that on one of the roads to the entrance of the Smithsonian Udvar-Hazy museum in Dulles. Nowhere near as Gravely Point, but it will do in a pinch.