Year after year, a little more of the visual history of Cape Lookout National Seashore on the Outer Banks of North Carolina is lost. Hurricanes and nor’easters take their toll on the structures in two small villages there, slowly erasing the reminders of what was once a thriving shipping and fishing hub.    The Traveler’s Lynn Riddick spoke with Cape Lookout National Seashore superintendent Jeff West to learn about the efforts to save whatever historic structures they can.