As the Tube network has evolved, so has the map by which Underground passengers ... the line made use of steam trains to carry passengers under central London. Just one year later, the Hammersmith ...

Map of the Central line in 1912 (Image: TfL Corporate Archives) Two years later, the Underground Electric Railway Company of London was formed, bringing all lines apart from the Metropolitan ...

The Metropolitan line was the Underground’s first route to open, but over the next 160 years it has expanded to 11 lines, covering 250 miles of track. As the Tube network has evolved, so has the map ...