Syon Park is home to one of the most beautiful Robert Adam interiors in England. It gained international fame through its grand entry hall, featured in films like The Duchess starring Ralph Fiennes and Keira Knightley as the Duke and Duchess of Devonshire. Over the centuries, the house has hosted many real Dukes and Duchesses, as well as most of the crowned heads of Europe. Today, it is open to the public along with its magnificent 200-acre park, designed by the legendary 18th-century landscaper, Capability Brown.