Drimnagh Medieval Castle and Gardens

This guide to Drimnagh Castle in Dublin starts in 1986, with the roof caved in and the stone collapsing into the water of Ireland's last surviving flooded castle moat. It follows the artist Peter Pearson, who couldn't walk away from the ruin and gathered a committee and a crew of trainees to take it on stone by stone. Along the way you'll hear how the land came to a Norman knight under King John in 1215, and the family who held the castle and dug its moat for centuries after. It also traces the seventeenth-century herb garden laid out beside the restored hall.