tedesco57 has added a photo to the pool:
Waddesdon Manor is a country house in the village of Waddesdon, in Buckinghamshire, England. Owned by the National Trust and managed by the Rothschild Foundation, it is one of the National Trust’s most visited properties, with over 463,000 visitors in 2019.[1]
The Grade I listed house was built in a mostly Neo-Renaissance style, copying individual features of several French châteaux, between 1874…
Source : https://www.flickr.com/photos/tedesco57/55562625254/in/pool-17918700@N00