4Caerphilly Castle
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Viewers of the BBC series Merlin will be familiar with the sprawling 13th-century fortress. Huge is an understatement when attempting to describe the massive area this castle occupies – it’s second only to Windsor in terms of size. Caerphilly was hailed for being a true concentric castle and its being surrounded by water was hailed as a great defensive strategy. Click the next ARROW to see the next image!
