Conwy Castle
Conwy Castle in North Wales is one of the finest examples of medieval military architecture in Europe and among the most dramatically sited of the castles built by Edward I of England during his conquest of Wales in the late thirteenth century. The castle stands on a rocky outcrop above the tidal estuary of the River Conwy, its eight massive round towers and two barbicans connected by long curtain walls that descend from the castle to enclose the entire medieval walled town in a unified defensive system that is unique in Britain for the completeness of its combined castle and town circuit.
The castle was built between 1283 and 1289 as part of Edward's ring of fortresses designed to subjugate the principality of Gwynedd following his defeat of the last independent Welsh prince Llywelyn ap Gruffudd. The speed of construction, achieved by concentrating hundreds of craftsmen simultaneously on site, produced a building of exceptional quality in under six years. The design by the Savoyard master mason James of St George, who was responsible for most of Edward's Welsh castles, shows a sophisticated understanding of defensive architecture adapted to the specific topography of the Conwy estuary.
The town walls of Conwy, descending from the castle and encircling the medieval settlement in a circuit of more than a kilometre with twenty-one towers, survive to their full height for most of their length and constitute one of the most complete medieval planned town defences in Europe. The combination of castle and complete town walls, along with the three medieval townhouses surviving within the walls including the National Trust's Aberconwy House, makes Conwy the most completely preserved Edwardian planted town in Wales.
The three bridges spanning the Conwy estuary adjacent to the castle, including Telford's 1826 suspension bridge and Robert Stephenson's tubular railway bridge, represent three centuries of bridge engineering in extraordinary proximity and add a further layer of architectural and engineering interest to a site already exceptional in those terms.