Transport for London has released another alternative version of the Tube map—and it’s actually really useful. The London transport manager has created a ‘Walk the Tube’ map, which shows how long it takes to totter between stations.
New London Tube Map Shows How Long It Takes to Walk, Not Ride a Train
In the Harry Potter universe, there's not really any need to text. People can use floo powder to talk to other wizards and witches through their fireplace and they can apparate at will. But what might happen if the characters from the Harry Potter books started texting one another?
Built in 1869 by the East London Railway Company, which reused the Thames Tunnel intended for horse-drawn carriages, the line became part of the London Underground network in 1933. Description from snipview.com. I searched for this on bing.com/images
13 Abandoned Stations & Disused Platforms of the London Underground