The National Trust was a human organisation dedicated to preserving the Earth and everything on it. They owned many natural areas.
The National Trust kept a model of Buckingham Palace available for public consumption. (TV: The Beast Below)
Clara Oswald visited many National Trust houses in her childhood. (AUDIO: The House of Winter)
Chalstone Manor was a National Trust location. (PROSE: Not a Creature Was Stirring [+]Loading...["Not a Creature Was Stirring (short story)"])
The National Trust was responsible for preserving the UK's landmarks aboard Starship UK. Among the treasures were Stonehenge, Buckingham Palace and the Colossus of Swindon. The National Trust was sponsored by Lancashire Sector Tea-Flavoured Hot Drink. (PROSE: Welcome to Starship UK)
In the year 5.5/Apple/26, Ezekiel Lethebridge-Stuart was the President of the National Trust. (PROSE: Legacies) The National Trust set up gravity satellites to hold back the sun's expansion and restored the Earth to its "classic state". In the same year they ran out of money, leaving them with no choice but to decomission the satellites and let the sun destroy the Earth. (TV: The End of the World) Later that year Ezekiel, and his wife Dorcas Lethebridge-Stuart, became two of the founders of New Earth. (PROSE: Legacies)
Melanie Bush described the Galactic Heritage as "a militarised, spacefaring National Trust". (AUDIO: The High Price of Parking)