Now a single Tube route, the Northern line’s origins lie in two separate ... wait times Over the coming weeks, we’ll be using maps to tell you the story of each of London’s Tube lines.

When you open the map you’ll see all the familiar squiggly coloured lines (red for Central, dark blue for Piccadilly, etc) and stations represented by dots. On each line, there darker lines ...

Now a single Tube route, the Northern line’s origins lie in two separate early underground railways. The first to be built was the City & South London Railway, which was also the first electric Tube ...