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A National Trust is an organization dedicated to preserving the cultural or environmental treasures of a particular geographic region. They generally operate as private non-profit organizations, although some receive considerable support from their national government. The first such organization was the National Trust for Places of Historic Interest or Natural Beauty, which is the National Trust of England, Wales and Northern Ireland, formed in 1895 and operating as a charitable organisation.

Extract from Wikipedia Link

List of National Trust places Link

Waddesdon Manor is a country house in the village of Waddesdon, in Buckinghamshire. The house was built in the Neo-Renaissance style of a French château between 1874 and 1889 for Baron Ferdinand de Rothschild (1839–1898). The last member of the Rothschild family to own Waddesdon was James de Rothschild. He bequeathed the house and its contents to the National Trust in 1957.

The house was built on a barren hilltop overlooking Waddesdon village. In 2007–08 it was the National Trust's second most visited paid-entry property, with 386,544 visitors. Link
House Website: Link