Ключевые слова: arch, architecture, asia, autumn, baikal, birch, blue, circum, clear, construction, eastern, engineering, fall, fashioned, grass, irkutsk, lake, landscape, larch, masonry, mountains, nature, old, orange, pine, rail, railroad, railway, region, road, rock, russia, siberia, siberian, sky, sleepers, stone, stonework, sunny, track, trans, transcontinental, travel, tree, tunnel, wave,