Caerphilly Castle

caerphilly Castle is a Norman castle that dominates the centre of the town of Caerphilly in south Wales. It is the largest castle in Wales, the second largest in Britain (second to Windsor castle) and is one of the largest fortresses in Europe. Built mainly between 1268 and 1271, it is an early example of a concentric castle and is surrounded by large but fairly shallow artificial lakes to slow attackers and prevent the undermining of its walls.