Hopton Castle is a ruined medieval fortress near the village of Hopton Heath, close to the border between England and Wales.

Dinefwr Castle is a medieval fortress in south-west Wales. It stands on a hill above the River Tywi. The site is within Dinefwr Park.

Manorbier Castle is a medieval fortress in Pembrokeshire. It dates from the Norman period.

Cardiff Castle is a medieval and Victorian-era site in the centre of Cardiff, the capital of Wales.

Usk Castle is a partly ruined medieval castle in Monmouthshire, South Wales.

The site has been strategically important since the Iron Age, and the current stone structure dates mainly from the 12th century.

Laugharne Castle is beside the River Taf in Carmarthenshire, South Wales. It began as a Norman stronghold before being converted into a Tudor mansion.

Aberystwyth Castle is a striking example of a coastal fortress built during the medieval period in Wales. It's found in the town of Aberystwyth, Ceredigion.

Coity Castle is a medieval stronghold situated near Bridgend in South Wales. The site features a combination of Norman military architecture and later domestic buildings.

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.

Denbigh Castle is a large medieval fortress in Denbighshire, North Wales. It was built during the late 13th century by order of King Edward I. The castle stands on a rocky hill above the town of Denbigh.

Llandovery Castle is a ruined Norman fortification in Carmarthenshire, Wales.

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.

Mold Castle is a medieval motte-and-bailey site in Flintshire, North Wales.

Ogmore Castle is a Norman fortification in the Vale of Glamorgan, South Wales.

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

Monmouth Castle is a partly ruined Norman stronghold in the historic town of Monmouth, South Wales.

Criccieth Castle stands on a rocky headland on the Llŷn Peninsula in North Wales. It overlooks Cardigan Bay and offers views of Snowdonia National Park.

Castell y Bere is in the Dysynni Valley in Gwynedd, North Wales. It is a remote stone castle built by the native Welsh during the 13th century.

Dolwyddelan Castle stands on a rocky outcrop in the Lledr Valley, Conwy County, North Wales. It is a single-tower keep built during the early 13th century.