Dunmore castle situated nine miles south west of Trim near the Boyne canal it was built in the 15th century. It is a three storey turreted castle approximately 20 ft 16 ft wide and 40 ft high these are the dimensions of what were known as the £10 castle's. These were built when Henry VI promised £10 to every subject that built such a castle before 1439 in Dublin, Kildare and Meath.

Dunsany Castle.

The castle was destroyed in the 1798 rebellion. Opposite the castle is the Ardmulchan estate a private home.

On the southern side of the hill of Tara is one of the oldest inhabited houses in Ireland Originally a Norman fortress built in 1180 to guard the road between Trim and Dublin, where it crosses the river Slane. All that remains of the original castle is the four towers, the castle has been much altered over the century's. Its owners since the 15th century has been the lords of Dunsanny the Plunket family who once owned two other estates Kileen and Rathmore.

Athcarne Castle.

Athcarne castle stands just six miles from the site of the Battle of the Boyne in 1690, it is said that King James II stayed at the castle on the night before the battle, and that a dejected appripation of him is said to haunt the castle.

The castle was originally built by William Bathe in 1507 on land granted to his family after the Norman invasion in the twelfth century. Three members of his family rose to be Lord Chief Justices of Ireland in later centuries