abstract appearance architectural background colors colours decorative Designs details distinct distinctive edged edges exterior external fancy interconnected interlinked light linear lined lines mosaic patterns perspectives rectangular rough shaped shapes slabs smooth stone stonework strength style surface surfaces textured textures thick thin tiled tiles uneven variation varied various wall wallpaper aluminium architecture braille building concave concavities convex culture discs elements iconic landmark metal modern New norway norwegian opera house oslo panel pattern silver texture city flagstones leisure pavement pedestrians people sidewalk sightseers stroll tourists walk architectural-elements black blended brown checkered checks colored coloring coloured colouring contrast contrasting grouting interwoven irregular matrix shiny small square squared squares surfacing vibrant wall-tiles white angles clock clock-face clock-tower color colorful colour colourful craftsmanship decorated decoration display green height high numerals ornamental ornamentation outdoors Roman numerals secure terracotta time time-piece wall-face pre-painting stained stains streaked streaks treatment water damage