Keywords
ancient, ancient civilization, architecture, asia, badaling, badaling pass, beijing, boundary, building exterior, building structure, capital cities, china, chinese culture, color, color image, colour, crag, curve, day, defending, famous place, fog, fortified wall, great wall of china, high angle view, hill, history, international landmark, journey, nature, nobody, outdoors, past, photography, protection, security, separation, traditional culture, travel, travel destinations, tree, vertical, wall, world travel, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, gwt168021