Ключевые слова: airport, architecture, away, background, center, city, concept, crowd, dusseldorf, electric, elevator, escalator, expo, floor, hostess, hour, indoor, item, line, mall, move, office, perspective, public, rush, shopping, side, skywalk, stairway, station, subway, suit, thailand, tradeshow, travel, up, urban, visitors, walk, way, white, yellow,