Clondalkin, Dublin 22 A round tower, dating from the 6th century. Opposite is a graveyard with ruins of an old medieval church. More information on Clondalkin Round Tower
Long Mile Road, Drimnagh, Dublin 12 Drimnagh Castle was, until 1954, one of the oldest continually inhabited Castles in Ireland, and is an outstanding example of an old feudal stronghold. It is the only Irish castle still to be surrounded by a flooded moat. More information on Drimnagh Castle
