Ключевые слова: airport, america, architecture, bank, building, business, center, centre, city, concept, departure, design, down, elevator, empty, entry, escalator, futuristic, glass, hotel, indoor, inside, interior, light, lobby, mall, metal, metro, modern, motion, move, office, people, perspective, public, singapore, speed, stair, staircase, stairway, station, steel, step, subway, train, transport, transportation, travel, up, urban,