Dylan Iorwerth ar daith i ddarganfod y gweddillion rhyfel cuddiedig sydd dan ddaear Cymru. Dylan Iorwerth discovers the war remains that lie secretly underground in Wales. Show more
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Dylan Iorwerth ar daith i ddarganfod y gweddillion rhyfel cuddiedig sydd dan ddaear Cymru. Dylan Iorwerth discovers the war remains that lie secretly underground in Wales. Show more