The castle, on the UNESCO heritage list, is one of the fortress towns built by Edward I in Wales. Although never finished, it is the finest example of a concentric castle. It is surrounded by a moat and has a fortified dock, with moorings for ships o..

Built in the 14C, this church served the town that developed around the castle. Beneath the portico is the tomb of Princess Joan, daughter of King John and wife of Llywelyn the Great.