above abstract angles appearance arched arches architectural architecture background bridge cover covering curves edge edges fabricated fabrication layers lines Melbourne metal open overhead patterns ridges roofing rows spaces steel strips structure structured surface surfaces texture textured textures Victoria visual Westgate Bridge arcade beams curve curved entrance exterior external style angled apartments backgrounds buildings chinese city clear colors colours contrast covered diagonal flats heights high homes houses modern overlap overlapping perspectives placement roof roofs rooftops rooves rounded shape shapes Singapore steep streets tiles tiling units windows contrasting corrugated corrugated-iron historic mixed old sunlight sunshine Haze smoke adornments wallpaper