For 76 years, a private underground line ran under the streets of London, completely separate from the Tube. And most Londoners have never seen or even heard of it - because you could only ride it if you were a mailbag. I went to find out more about the story of the Post Office Railway...

INSTA -   / the.tim.traveller  
TWIT -   / thetimtraveller  
FACE -   / thetimtraveller  


IMAGE CREDITS
Central London Railway by David Cane -
https://commons.wikimedia.org/wiki/Fi...
West Derby Delivery Office by Rept0n1x -
https://commons.wikimedia.org/wiki/Fi...
Mail Rail trains by Matt Brown -
https://www.flickr.com/photos/5786831...
Mail Rail station by Steve Knight -
https://flickr.com/photos/kitmasterbl...
Mail Rail train by Steve Knight -
https://flickr.com/photos/kitmasterbl...