Standing 125 metres south of Portlick Bay on the eastern shore of Lough Ree, Portlick Castle represents nearly 500 years of continuous occupation and architectural evolution.

In the townland of Duneel, County Westmeath, the remnants of Doon Castle lie hidden within wet pastureland, occupying a slight natural rise that once gave it strategic advantage over the surrounding low-lying terrain.

Standing atop a natural ridge at 101 metres above sea level, Rahugh Moat commands sweeping views across the Westmeath countryside.

Standing on a gentle rise above the surrounding grasslands of County Westmeath, the site of Paddinstown Castle presents an intriguing puzzle for those interested in Ireland's medieval heritage.

Located 270 metres southwest of Castletown Geoghegan village in County Westmeath, this castle site offers a glimpse into the medieval world of the MacGeoghegan clan.

In the grasslands of Balroe, County Westmeath, a subtle earthwork tells a story that spans centuries.

Simonstown Castle stands in the southeast corner of a pasture in County Westmeath, where four field boundaries meet.

Standing on a low rise with commanding views across the Westmeath countryside, the ruins of a 15th or 16th century circular tower offer a glimpse into Ireland's turbulent medieval past.

Grange Beg Castle once stood on a low rise in County Westmeath, surrounded by gently rolling pasture near the River Deel.

Set on a gentle rise amidst the rolling pastures of County Westmeath, the moated site at Crossanstown offers a fascinating glimpse into medieval Ireland, even though little remains visible above ground today.

Sitting atop a natural glacial hillock near Rochfortbridge, the earthwork remains of Castlelost represent one of County Westmeath's early Anglo-Norman fortifications.

Situated on gently undulating pasture with sweeping views to the northwest and northeast, the site of Bishopstown Castle in County Westmeath tells a story of gradual erasure from the landscape.

Kilcleagh Park stands as a testament to centuries of Irish country house evolution, its elegant form revealing two distinct periods of construction that blend harmoniously together.

Tucked away on what is now Excise Street in Athlone, County Westmeath, stands the remnants of a structure once known as Cox's Castle.

Situated in undulating pasture to the east of a quarry, about 300 metres southwest of Shinglis House, lie the remnants of what was once Shinglis Court.