Situated on a gentle southeast-facing slope below Brusselstown Ring, this intriguing quadrangular enclosure offers a glimpse into Ireland's medieval past.

Castle Kevin in County Wicklow stands as a fascinating example of Anglo-Norman fortification, its fragmentary remains telling a story that stretches back to 1214.

On a southeast-facing slope above the Dargle valley stand the weathered remains of Fassaroe Castle, a granite tower house built in 1535 by William Brabazon, who served as Treasurer of Ireland.

High above the Leitrim River at the northern edge of Wicklow town stands an intriguing earthwork known as Round Mount.

Standing on a natural platform at the summit of a small hill overlooking a steep stream valley to the east, Oldcourt Castle commands an impressive position in the Co.

In the townland of Kilmurry Upper, County Wicklow, a rectangular earthwork marks the site of a medieval moated enclosure.

The remains of a medieval motte and bailey castle sit atop a commanding sand ridge at Ardoyne in County Wicklow.

At the northern edge of Baltinglass town, near the medieval abbey, once stood a structure known as the abbot's castle.

South of Mount Kennedy House stands an intriguing circular mound that has puzzled archaeologists for years.

Kindlestown Castle in County Wicklow once stood within an impressive rectangular ditched enclosure, measuring 52 metres from east to west and 18 metres north to south.

In the stream valley at Rampere, County Wicklow, the remains of a medieval moated site reveal themselves through subtle earthworks and cropmarks visible from above.

Tucked into the southeast corner of an ancient moated site in County Wicklow stands what remains of a medieval square castle, a testament to centuries of Irish defensive architecture.

Perched precariously on the edge of Blessington Reservoir in County Wicklow, the ruins of Burgage More Castle tell a story of medieval ambition slowly surrendering to water and time.

Standing at the western edge of what may have been a medieval ringwork in County Wicklow's rolling countryside, Newcastle Castle's gatehouse tells a story of centuries of adaptation and change.

Perched on an east-facing slope with commanding views over the River Liffey, this rectangular three-storey tower house stands as a testament to medieval defensive architecture in County Wicklow.