Tucked into the northern section of a golf course in Rathbane North, County Limerick, lies the remnants of a medieval ringwork castle, now heavily concealed beneath thick grass and vegetation.

In a pasture at the base of a gently sloping, south-facing hillside near Kilmacow, County Limerick, lies a curious rectangular earthwork that hints at medieval occupation.

The ruins of Dungrot Castle in County Limerick stand as a testament to medieval Irish fortification ingenuity, where natural landscape features were cleverly incorporated into defensive architecture.

Black Castle, also known as Desmond Castle, once stood as a prominent tower house in Knockainy, County Limerick, though no trace of it survives today.

On an east-facing slope in Shanbally, County Limerick, the remains of a medieval moated site emerge from the pasture landscape.

The remains of Rath Castle in County Limerick offer a fascinating glimpse into how historic sites continue to shape the Irish landscape centuries after their heyday.

In the flat, wet pastureland of Tullerboy, County Limerick, aerial photography has revealed a substantial rectangular earthwork that remained hidden from mapmakers for centuries.

In the townland of Rathjordan, County Limerick, a level pasture holds a quiet mystery between a stream to the west and a road to the east.

In the reclaimed pastures of Duntryleague, County Limerick, lies a fascinating remnant of medieval Ireland that reveals itself most clearly from above.

In the reclaimed grasslands west of County Limerick's Cloghast townland boundary, a curious earthwork catches the eye of those who know where to look.

The fragmentary remains of Correen Castle, also known as Coonagh, tell a story of gradual decay that was already well advanced by the 19th century.

Tooreen Castle in County Limerick stands as a fragmentary reminder of centuries of Irish history, with only its western half surviving today amongst the trees.

In the quiet pastures of Killeedy North, County Limerick, a curious rectangular earthwork marks the landscape.

Standing on the south side of a farmyard in County Limerick, Lissamota Castle rises 60 feet into the Irish sky, its walls remarkably intact after more than seven centuries.

In the townland of Mountblakeney, known locally as Cnoc an tSoipéalaigh, stand the scant remains of what was once a substantial medieval castle.