The Baker Street & Waterloo Railway opened in 1906 though was soon known as the Bakerloo Line. The northern terminus of the line was once Watford Junction but this was reduced back to Stonebridge Park in 1992 before the line was restored back up to Harrow & Wealdstone in north west London two years later. This remains the line's northern terminus, though not all trains travel that far.
The line heads overground through Wembley, Willesden and then to Queens Park where the Bakerloo Line enters a tunnel and doesn't see light again all the way to the southern terminus of the line. The Bakerloo serves both Paddington and Marylebone mainline termini also connecting to major Underground junctions at Baker Street, Oxford Circus and Piccadilly Circus.
After Waterloo, another mainline terminus, the Bakerloo passes under the Thames to finally terminate at Elephant & Castle in Southwark. There have been proposals to extend the line further on, one serious proposal is to extend the line to Lewisham and Hayes though as yet it remains firmly in the planning stage.
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| Harrow & Wealdstone |
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| Edgware Road |
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| Regents Park |
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| Elephant & Castle |
