Today’s lighthouse is the fourth incarnation of the Roanoke Marshes Lighthouse, and uses a fourth order Fresnel lens. Once fairly numerous, no less than a dozen screwpile lighthouses served as aids to navigation along North Carolina’s trafficked rivers and sounds, dating back to the 1800’s. Easily accessible along the Manteo Waterfront, the lighthouse contains exhibits highlighting Roanoke Island’s lighthouse and maritime history. Hours vary seasonally. Free.