Ключевые слова: america, american, architecture, back, bay, boat, boston, bridge, building, buildings, cambridge, charles, charles river, city, cityscape, construction, downtown, landmark, landscape, lights, longfellow, longfellow bridge, massachusetts, modern, new england, old, panorama, river, sailing, scenery, scenic, sky, skyline, skyscraper, state, street, sunset, tourism, train, travel, united, urban, us, usa, view, water,