Castles and Town Walls of King Edward in Gwynedd WHS

The Castles and Town Walls of King Edward in Gwynedd is a UNESCO-designated World Heritage Site located in Gwynedd, Wales. It includes the castles of Beaumaris and Harlech and the castles and town walls of Caernarfon and Conwy. UNESCO considers the sites to be the "finest examples of late 13th century and early 14th century military architecture in Europe".The fortifications form part of the Ring of Iron built by Edward I after his invasion of North Wales in 1282.