cover drain entrance hole lid manhole metal pipes plumber round sewer shape Underground air carved carving choral church decorated decorative historic instrument music old organ religion silver tubes wood woodwork abstract architecture broke broken case-harden cement concrete construction element elements mosaic pipe piping red saavem stone textures above angles appearance building capping covered covering edge exhaust-pipes exterior external grooved grooves height high roof roof-area roof-capping roof-whirlybird roofing rooftop shapes sky sunlight sunshine tiles tiling turbine-ventilator vent ventilation ventilation-exhaust-pipes ventilation-system ventilator vents whirlybird whirlybirds wind-turbine art Bristles broom brush Denver dust dustpan modern museum Oldenburg paper wires bank bulding cars city germany leipzig office parking roadsign sign stopped street town brick bricks debris demolish destroy door empty fence litter ruins wall walls bag coast house Kilt light lighthouse ocean rocks scotland scottish sea white antena antenna balconies balcony dusseldorf flats home live rainpipes roofs shelter windows