background degrade drain drainpipe grunge pipe rain rust rusted rusting rusty texture threads urban weathered architecture city classic downstairs elements hand handrail rail saavem stair stairs stone upstairs aquamarine blue liquid marine pattern ripple Sardinia seawater sparkle sparkling summer sunlight water aged degraded metal old paint peel peeling scratch scratched weather worn braid decoration decorative plait plaiting pleat spray sprig twig wattle wicker willow batten board gnarl grain knag knur plank selvage slat vein wood wooden