architectural architecture bedrock bricks brickwork colors colours formation heritage historic Historic site kiln kilns 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 variations varied wall walls abstract angles appearance backdrop background backgrounds barrier blocks coloring colouring constructed contours contrast contrasts fitted large limestone linear lines mortar perspective perspectives rock-face rockface rough secure security solid stonework strength strong surface variety walled well-built deteriorating weathered weathering cracks discoloration lichen moss landscape stairs steps stone-steps trees vegetation clouds grass green mountains outdoors sky space summer basic exterior external firm rock-wall rugged shaped shapes style sunshine uneven various wallpaper