angles appearance arched arches architectural-elements architecture building coloring colors colouring colours craftsmanship creative decorative Designs distinctive exterior external glass heritage historic historical history light old ornamentation outside patterns perspectives segments shapes solid stonework strong style sunlight sunshine surface surfaces texture textured textures traditional variations wall wall-segment windows appearances architectural austere city closed-doors contrast contrasting dark decorated detailed doors elements government government-buildings gray grey grime handrails height high linear lines pillars power quality reflections sound steps strength structures support abstract blue contemporary geometric geometric-shapes high-rise modern panelling panels patterned recessed reflective rows skyscrapers square square-patterned squared unusual various views walls arched-windows black block boxes color colored colorful colour coloured colourful decoration design masonry ornamental plain reflection Rooms Somber sombre box-like buildings business-district city-scapes city-views distance distant heights office-buildings offices rectangles rectangular bird’s-nest blue-sky edge edges edging glasshouse gold golden intricate metal-work nest nesting prestige prestigious roof roof-edge roofing sky spire supports curve curved Hong Kong office buildings wealth