abstract appearance background brown colored coloring colors coloured colouring colours conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light lines natural rock rock-face rockface rocky rough rugged shade shadows shape shaped shapes stone strata stratum sunlight sunny sunshine surface surfaces texture textured textures veins wallpaper above angles arch arched arches architectural architecture artistic craftsmanship dark decorated decorative distinctive entrances exterior external façade framed frames glass gray grey height high historic historical history linear ornamental patterned patterns peak peaked pillared security sepia solid steps stonework style symmetrical symmetry windows workmanship advice alert appropriate-behavior appropriate-behaviour black care caution close-up communication concern danger dangerous directions greenery hazard hazardous hazardous-pathway message path-warning-sign safety sign signage tree trees trip-warning tripping-up uneven vegetation walking-hazard warning warning-sign yellow accommodation bridge business-complexes city color colour cultural culture decorations dome domed flora flowers foliage green highrise modern New peaceful perspectives pink plants shrubbery shrubs Singapore skyline towering towers tropical variation variety architectural-elements building design features frontage garden grass heritage lawn masonry old ornamentation pillars ridges roof roofing segments shadow significant stately strength strong support wall walls arrangements bush bush-park bushland bushland-gardens colorful colourful eucalypts evergreens exotics floral gardens native-plants natives open park parkland paths pedestrians people public tourists tracks tranquil tulips visitors