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

Tretower Court and Castle sit in the Usk Valley at the edge of the Black Mountains in Powys. The site includes a ruined Norman castle and a well-preserved medieval manor house.

Abergavenny Castle is a ruined Norman fortress in South Wales. It was first built in 1087 by the Norman lord Hamelin de Balun to secure the borderlands.