A 19th century, neoclassical home designed by royal architect John Nash has gone on the market for a staggering £17.95million. Pictured, one of the five bedrooms available in the property The Grade-I, five-bedroom property on Hanover Terrace in Regent's Park, which is home to some of London's elite, was once owned by Rothschild tycoon Baron Solomon Benedict de Worms, the …