© National Trust Images/John Bethel
- Grade I listed garden, extensive woodlands and Italianate mansion. This spectacular estate overlooking the River Thames has a series of gardens, each with its own character, featuring topiary, statuary, water gardens, a formal parterre, Octagon temple, informal vistas, woodland and riverside walks. The present house, the third on the site, was built by Charles Barry for the Duke of Sutherland in 1851. Once the home of Nancy, Lady Astor, it is now let as an hotel and is open only on certain days.