Ключевые слова: abstract, architecture, built, business, center, chrome, city, clambering, concepts, construction, contemporary, corridor, dark, descend, design, down, downtown, elevator, escalator, exit, future, glass, grey, indoors, interior, light, lisbon, mall, metal, metro, moving staircase, office, portugal, reflections, rise, shopping, stairs, stairway, station, steel, step, subway, technology, tile, transportation, travel, tube, underground, up, urban,