Located beside an early 19th century church, this is Haynestown Castle, County Louth. Believed to date from the 16th century, it is a square, three-storey tower house made distinctive by having a massive turret at each corner. These have slit windows on the two upper floors but otherwise the building has few openings, its entrance on the west front long since blocked up. The central sections of this and the east side are notable for being finished with large arches.