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

Built in the late 18th century, it was not constructed for military defence but as a decorative building with sentimental significance.

The castle was built on the site of a medieval fortified manor, the current structure was designed by architect Thomas Hopper for the wealthy Pennant family.

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

Castell Dinas Brân is a medieval castle ruin above the town of Llangollen in Denbighshire, North Wales.

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.

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.

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.

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

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.

Newcastle is a Norman castle ruin overlooking the town of Bridgend in South Wales.

Montgomery Castle is a ruined stone fortress in Powys, Wales. It stands above the market town of Montgomery.

Dolbadarn Castle stands near the village of Llanberis in Gwynedd, North Wales. It overlooks the waters of Llyn Padarn.