Carmarthenshire's county town is a place of legend and ancient provenance, but it's not the kind of place you'll feel inclined to linger in. It's a handy transport and shopping hub, but there's not a lot to see. The Romans built a town here, complete with a fort and amphitheatre, and a castle followed in 1106, courtesy of Henry I.
Most intriguingly, Carmarthen is reputed to be the birthplace of the most famous wizard of them all (no, not Harry Potter) – Myrddin of the Arthurian legends, better known in English as Merlin. An oak tree planted in 1659 for Charles II's coronation came to be called 'Merlin's Tree' and was linked to a prophecy that its death would mean curtains for the town. The tree died in the 1970s and the town, while a little down at heel, is still standing.