Ключевые слова: activity, architecture, building exterior, built structure, business, business finance and industry, city, city life, closeup, construction industry, design, electricity, elevator, empty, entrance, escalator, flooring, footpath, footprint, glass material, holding, horizontal, indoors, inside of, macro, metal, modern, motion, moving down, no people, picking up, staircase, station, steel, steps, street, subway station, technology, urban skyline, vanishing point,