Ключевые слова: america, american, architecture, beautiful, calm, cultural, day, daytime, dc, ducks, glide, heritage, historic, iconic, landmark, landscape, monument, national mall, nature, outdoors, park, peaceful, peacefully, pool, public, recreation, reflecting, reflection, relaxation, scene, scenic, serenity, sightseeing, sky, sunny, swimming, tranquil, travel, urban, us, usa, view, washington, water, waterfowl, wildlife,