Featuring rat catchers, "fluffers", and of course strikes. Have a look at our series from the earliest days here.
See historic photographs charting the changing face of London's underground network, from its launch 150 years ago to date
The New Year's Day episode of Sherlock included a plot line about abandoned Tube stations. The eerie empty platforms and booking offices have enthralled photographers.
The early days of the tube. Via Museum of London.
In the midst of life I woke to find myself living in an old house beside Brick Lane in the East End of London
Petros Afshar created a series of stamp designs for the Royal Mail. The concept was to highlighting british inventions through use of imagery and typography
Why Bother About The Germans Invading The Country? Invade it Yourself by Underground and Motor-Bus. (c. 1914¦1918).