Caerphilly Castle is one of the largest medieval fortresses in Britain. It stands in the town of Caerphilly, South Wales. The castle is known for its concentric design and large artificial lakes.

Castell Coch is a 19th-century Gothic Revival castle built on medieval foundations. It stands on a wooded hillside near Tongwynlais, just north of Cardiff.

Chepstow castle was vital in the defence of the Welsh Marches. Its strategic riverside position made it important for controlling trade and military movement.

Dryslwyn Castle is a ruined medieval fortress in Carmarthenshire, Wales. It stands on a steep hill overlooking the River Tywi.

Raglan Castle stands in Monmouthshire, South Wales. It is one of the last true medieval castles built in Britain. Construction started in the 15th century, making it later than many other Welsh castles.

Linked to King Arthur, Caerleon Castle was a likely medieval fort in Caerleon, South Wales. Likely to have been built by the Normans, or possibly a Welsh lord.

Grosmont Castle is a Norman stone fortress located in South Wales. It's near the River Monnow, by the English border, and forms part of a trio of castles.

Its imposing stone walls and towers have witnessed centuries of conflict and change. Built in the 12th century, the castle has been a focal point in the struggle between the Normans and the Welsh.

Above the rocky banks of the River Cleddau, Pembroke Castle dominates the town that shares its name. Its great round keep casts a long shadow.

Carreg Cennen Castle stands on a limestone crag in Carmarthenshire, its ruins commanding views across the Brecon Beacons. The castle's strategic position made it a formidable stronghold in medieval Wales.

Skenfrith Castle is a Norman stone fortress located in Monmouthshire, near the Welsh-English border.

Built in the late 11th century, it formed part of the defensive strategy along the Welsh Marches, alongside nearby Skenfrith and Grosmont.

Cilgerran Castle stands above a steep gorge of the River Teifi in west Wales. Built in the early 13th century, it played a key role in defending the contested borderlands between Norman lords and native Welsh rulers.

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.