@heathrowairport: Did you know a vast, empty space lies beneath Terminal 5, full of ghosts and ghouls? 👻 All spooks aside, this train station was built in 2008 to prepare for future rail links to enable greater access to Heathrow by rail. 🚆 And it’s closer than you might think. Next time you arrive at Terminal 5 on the Heathrow Express, there’s a whole hidden part of Heathrow just a few meters away. 👀