Ключевые слова: afternoon, america, american, architecture, bank, boston, bridge, bridges, bright, calm, capital city, charles river, charles river esplanade, city, edge, environment, esplanade, flora, grass, green, ma, massachusetts, metropolis, modern, nature, new england, north america, park, peaceful, plant, plants, recreation, riverbank, shore, sightseeing, silent, summer, sunny, tranquil, tree, trees, united states, urban, usa, vacation, vegetation, water, wood,