architecture downward empty escalator escalators metal movement moving progress solution stair stairs step steps transport transportation upward cars down downwards house houses live Morning neighborhood parked pavement quiet residence road stop street trees villa banister bannister carved curled decorative helix shape shapes snail snake spiral stairrail stairway wood wooden connection deep escalatr London long people station subway traffic tube Underground floor inside interior levels move storey cascading colors colours containers cool cooling dark dishes downhill edges flow flowing light multi-level multiple-levels park peace peaceful reflecting reflections ripples rippling running shaped stones stonework stream streaming surface surfaces textures water water-feature waterfall wet angle angled architectural ascending covered descending descent height high narrow sheltered steep travel travelling UP up-and-down abstract broad fast-flowing public sunlight sunshine wide atmospheric-humidity ceiling circles circular curved curves curving decore design distinctive down-pour drop droping environment glass high-tech indoor-gardens lighting liquid public-area skylight steel structure tall transparent unique ventilation visibility windows appearance bell-shaped biennials blooming blooms clump-forming colored colorful coloured colourful cultivars Digitalis display downward-facing erect exotics flora floral flower-spikes flowers foxglove garden garden-flowers garden-plants herbaceous horticultural horticulture mottled nature ornamental perennials petals plants potent-glycosides tall-spikes toxic toxicity tubular unusual whorls