There’s no better place in Britain to see how castles gradually evolved to cope with ever more destructive weaponry – and the grandiose ambitions of their owners.
Nid oes un lle gwell ym Mhrydain i weld sut esblygodd cestyll yn raddol i ymdopi ag arfau mwyfwy dinistriol – ac uchelgeisiau mawreddog eu perchenogion.