access denied arch arched back-alley bricked in brickwork building city closed corrugated corrugated iron corrugations curved dark decay demolished deterioration disrepair doorstep doorways elements entrance exit exterior external grime ground-level nailed neglect no access old partially demolished building safety sealed urban decay abandoned angles appearance barriers bush danger iron light mesh metal metal work open roof roofing rural rural decay rust rusting rusty shade shadows steel sunlight color colored colors colour coloured colours corrugated-iron demolition derelict neglected partially-demolished-building posts rural-decay shed weeds wood wooden black centre concrete demolish down dundee grey knock lamppost office scaffold tall tower traffic windows