angles appearances architectural architecture blue box-like buildings business-district city city-scapes city-views color colour contemporary contrast contrasting distance distant distinctive elements exterior external glass gray grey heights high high-rise light linear lines modern office-buildings offices perspectives rectangles rectangular reflections reflective style views walls windows architectural elements black business district city scapes city views colors colours interior lighting office buildings skyscrapers steel tinted wealth high rise black & white greyscale monotone accommodation apartment-building apartment-complex balconies balcony barrier building concrete height home house lights modernistic multi-storey multi-story protection safety squared straight structure structured suburban tiled tiles units urban wall abstract background basic brick brick-wall bricks brickwork building-material colored coloring coloured colouring composite constructed fading firm mortar old partial partially-painted perspective rough secure security solid standard strength strong surface surfaces symmetry texture textured textures uneven varied various white