architectural architecture archway brick-walls bricks brickwork colors colours formation heritage historic Historic site kiln kilns landscape light lime-kilns park patched patchwork repairs rock rock-work rocks rubble ruins shadows stone stone-wall stone-work stones structure sunlight surfaced surfaces surfacing texture textured textures trees variations varied vegetation wall walls arch historic-site background backgrounds block blocks brick brick wall building fishmonk granite hard material pattern patterned patterns textural amsterdam font memorial placard stone texture street street object text wall ornament arches arching bedrock stairs steps wooden-steps city color mosaic mosaics mozaiek puzzle structures abstract angles backdrop barrier bolders boulders cemented coated concrete constructed cover covered erosion-prevention fitted hill mortar perspectives random randomly-coursed Rendered retaining-rocks retaining-wall rocky rough rugged secure security slope sloping solid stone-walled stonework strength strong surface uneven variety walled well-built stone-steps