Destruction of concrete by bird droppings

wall sheltering brick wall old ruin brick ceiling domestic room environment construction industry graffiti corridor rubble rotting deterioration indoors concrete abandoned dark occupational safety and health homelessness design physical structure collapsing supported old ukraine architecture rusty industry hd safety steel exterior support 1080p engineering bridge factory damaged modern ruined city flooring dirty rod broken crossing cut out accident crane - construction machinery flood disaster blue architectural column messy