National Geographic
Take a slow train journey from Craven Arms in England to Llanelli in Wales, passing bucolic farmland, sleepy villages and centuries-old castles.
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Could Heart of Wales railway line be the country’s best-kept secret?
Oliver Smith
03:21
Take a slow train journey from Craven Arms in England to Llanelli in Wales, passing bucolic farmland, sleepy villages and centuries-old castles.
