Osterley Park, London

National Trust.
Osterley Park stands on the site of an Elizabethan mansion which was radically reworked by Robert Adam from 1761 onwards. A grand double portico added by Adam closes the courtyard and provides an imposing entrance. Adam created many grand rooms with décor evoking the world of Greece and Rome. Noteworthy are a grand hall and the Etruscan Dressing Room.
Outside is a large park with trees and a lake.
There is quite a lot to see at Osterley Park.
When I visited, my sat-nav delivered me to a lane leading to a back entrance to the park, but I didn’t have to pay any parking charges there. Official entrance & parking are at Jersey Road. Osterley tube station is a mile from the Park.