Harlech Castle stands on a rocky hill overlooking the Irish Sea in Gwynedd, North Wales. Built during the reign of King Edward I in the late 13th century, it formed part of the English monarch’s chain of castles known as the Iron Ring.

Conwy Castle is one of the most complete and impressive medieval fortresses in Wales.

Beaumaris Castle is an unfinished masterpiece of medieval military design, located on the Isle of Anglesey in North Wales.