interior roof structure and vents of a beehive brick kiln at the former site of the porth wen brickworks, anglesey, north wales

abandoned anglesey aonb area beauty beehive brick brickworks britain creative dangerous derelict discarded former future gem hidden historic history hole industrial interior isle kiln kingdom llanbadrig looking monument north now old outstanding porth porthwen postmedieval remains roof scheduled site soot structure united unused vent vents victorian view wales walls welsh wen