Ключевые слова: arch, arch bridge, arched, architecture, beautiful, boulder, bridge, building, calm, canal, cloudy, environment, europe, foliage, footbridge, garden, gatchina, green, lake, landscape, medieval, nature, nobody, old, outdoor, outside, park, pathway, peaceful, picturesque, pond, ripple, river, russia, saint petersburg, scene, scenic, silence, sky, small, st petersburg, stone, summer, tourism, tranquil, travel, tree, view, walking, water,