Two miles southwest of Llanfair PG, the ancestral home of the marquesses of Anglesey, Plas Newydd (New House), is surrounded by tranquil gardens, with fine views across the Menai Strait to Snowdonia. The building has its origins in 1470, but most of today's Gothic manor took shape in the 18th century. Inside, the walls are hung with gilt-framed portraits of the Paget family ancestors (William Paget was secretary of state to Henry VIII), who owned the house until 1976.
A highlight is a giant trompe l'oeil mural by Rex Whistler filling an entire wall of the dining room – the painting magically changes perspective as you walk around the room. A tearoom, a Cavalry Museum featuring the world's first articulated leg (to replace the one lost by the first marquess at Waterloo), and a luxuriant rhododendron garden punctuate the grounds.
