background deteriorating deterioration discoloration empty exposed external frame iron memorial metal monument neglected old plate rust rusty shadow shadows sunlight texture textures wear weathered worn blue coruna eu galicia grunge nature ocean oxidation oxide oxidized oxidizer oxidizing rusting sea sky Spain wrought bar bars color colors decay letters natural paint painted steel steel tube tubes typo typography urban urban decay abstract architectural backdrop concrete construction contained cover covered design detail drain drainage draining grating gray grey grid grill grille heavy lattice lid lined lines maintenance metallic parallel pavement paving perspective sanitation shape solid square squared squares strength strong bolt bolts cage machine machinery mesh nut nuts Nuts and Bolts rusted weld welded welding