abstract architectural backdrop background barrier brick brick-wall bricks brickwork cement colored coloring colors coloured colouring colours constructed curved curving exterior external firm linear lines mortar perspective perspectives rectangular secure security smooth solid standard strength strong style surface surfaced surfaces texture textured textures traditional-brick-wall variation varied various wall walled wallpaper well-built rough-work accommodation angles apartment-blocks apartments appearances architecture box-like boxed building complex concrete contrasting dark Designs detailed distinctive elements flats glass height high high-rise highrise light metal modern modernistic multi-storey multi-story plain red shield shielded shielding squared straight structured structures supports tall towering units views windows off-white purple buildings business-district city city-scapes city-views color colour commercial-building contemporary contrast distance distant heights metropolis metropolitan-area office-buildings rectangles reflections skyscrapers tower-block urban-area walls wealth arched arches colorful colourful decorated façade flowers gardens greenery grime heritage historic levels low patterns quality shapes Sizes styles tower variety