The foundations of two castra have been discovered on the grounds of the Dinefwr estate, which is in the custody of the National Trust for Places of Historic Interest or Natural Beauty. The estate of Golden Grove lies near the town, and further away, the impressive Carreg Cennen Castle, another Welsh stronghold. The remains of Talley Abbey can be seen away to the north of the town. further north are the remains of the Roman Dolaucothi Gold Mines, another National Trust property.