blue brickwall brickwalls brickwork brickworks building close closeup depth direction mortar old path perspective sky stone stones texture way work pollution smokestack wall backdrop background color colored colorful colors colour coloured colourful colours decoration decorative desktop irregular mosaic multicolored multicoloured pattern patterns shape shapes structure structures textures wallpaper angles appearance barrier brown coloring colouring constructed craftsmanship heritage historic local-stone perspectives picturesque random randomly-coursed rock rocks rough rural secure security significant solid stone-walled stonework strength strong stucco surface surfaces traditional uneven variations variety well-built abstract bolders boulders cover covered fitted fitting large limestone mound retaining-rocks rocky rugged shade shadows shaped sharp sunlight sunshine surfaced Aarau Aargau ancient bike city door europe house romantic still life stilllife switzerland town architectural architecture brick-walls bricks formation historic-site kiln kilns light lime-kilns park patched patchwork repairs rock-work rubble ruins stairs steps stone-wall stone-work surfacing textured trees varied vegetation walls wooden-steps block boundary design earth earthy India loose Mud muddy pebbles perimeter shale stone wall village