Ключевые слова: afternoon, america, american, architecture, building, capital, castle, castle exterior, castle tower, city, columbia, dc, dc attraction, district, exterior, fall season, fall trees, family, famous, famous building, government, historic, historic architecture, history, landmark, leisure, museum, museum building, park, park trail, people outdoors, people walking, recreation, sculpture, smithsonian, smithsonian museum, sunset, symbol, tourism, tourist, travel, united states, us, usa, usa museum, usa tourism, visitors, washington, washington dc attraction, yellow trees,