abandoned conveyor shutes corrugated iron decay factory metal multi-storey old shutes tin shed urban window frames activities flying high landscape mountain paragliding shute sky sport appearance architecture background building construction conveyor-shutes corrugated-iron damaged derelict deteriorated deterioration exterior external frame framed frames historic historical history industrial multi-story neglect neglected open openings Remains shadows structure sunlight sunshine texture textures tin-shed wall walls window-frames children colourful empty fun games house hut kids outdoor park playground sand slide toyhouse wood wooden amusement climbing area joy junglegym kindergarden kindergarten monkey bars play playground equipment swing