The above photograph of Rosslyn was taken in the early 1860s from east of Rosslyn, about where the Smithsonian Castle is located. The lighthouse near the middle of the photo is about where the Washington Monument now stands. Rosslyn then was the most notable spot is what is today Arlington County. While the landscape has changed greatly, the importance of Rosslyn remains.
Photo note: Photo by Titian Ramsay Peale, held at University of Rochester. Peale took eight panoramic photos, equally spaced around a 360 degree view from the Smithsonian Castle. Reproductions of these photos are now on display in the Smithsonian Castle.