Crumbling remains of the Rossmore family's 19th-century castle, including its entrance stairway, buttresses and the family's pet cemetery, can be seen at Rossmore Forest Park, where rhododendrons and azaleas blaze with colour in early summer. Along with forest walks and pleasant picnic areas, the park contains several giant redwoods, a fine yew avenue and Iron Age tombs. It's 3km southwest of Monaghan on the Newbliss road (R189). The car park accepts coins only.
