Ardress House

Portadown

A charming Georgian farmhouse in Co Armagh — Stapleton plasterwork, 18th-century paintings, and a working farmyard

Grey Abbey

Greyabbey

Ireland's most complete Cistercian ruin — medieval splendour on the Ards Peninsula

Mount Stewart

Newtownards

A great house, extraordinary gardens, and one of history's most consequential statesmen — on the shores of Strangford Lough