Ключевые слова: abstract, ada, architecture, area, belgrade, blue, bridge, building, business, cable, cement, city, cloud, clouds, concrete, construction, crane, crossing, day, design, development, engineering, europe, famous, fences, forms, frame, high, hoisting crane, industrial, industry, infrastructure, iron, isle, metal, modern, overpass, pallets, preparation, projects, repairing, river, sava, serbia, site, sky, stand, steel, structure, supports, suspension, technology, tool, tower, transportation, travel, urban, vertical, warehouse, white, wide angle, wire, workers, workmen,