The magnificent 18th-century Mount Stewart is one of Northern Ireland’s grandest stately homes. Entertaining tours tell the story of the house and its contents; treasures include a painting of racehorse Hambletonian in Hambletonian, Rubbing Down (1799–1800) by George Stubbs, one of the most important paintings in Ireland. The house overlooks formal gardens filled with colourful sub-tropical plants and eccentric topiary. Mount Stewart is on the A20, 3km northwest of Greyabbey. Buses from Belfast to Portaferry stop at the gate.