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.

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.

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.

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.

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.

Powis Castle is a medieval fortress with later additions, situated near Welshpool in Powys, Wales.

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.

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

On the edge of the River Seiont in northwest Wales, Caernarfon Castle is a fortress, a symbol of royal ambition, and an enduring link to Wales' exciting medieval past.

An article on Caer Drewyn Hillfort, written by Mark Hammond.

Rhayader Castle was a medieval fortification built in the early 12th century in Powys, central Wales.

Dolforwyn Castle was constructed in 1273 by Llewelyn ap Gruffudd.