Ключевые слова: ancient, architecture, background, bridge, building, construction, culture, discovery, engineering, famous, french architecture, hanoi, historical, history, indochina, industrial, iron, journey, landmark, landscape, metal, old, outdoor, parallel lines, rail, railroad, railway, river, road, rusting, saigon, sky, southeast asia, steel, structure, summer, tourism, track, train, transport, transportation, travel, urban, vietnam, view, vintage, way,