Which London Underground line is the network’s shortest, with only two stations?

The Waterloo & City line is the London Underground’s shortest line and has only two stations: Waterloo and Bank. Its route is approximately 2.37 kilometres long.

The line opened in 1898 as an independent electric railway, linking Waterloo station with the City of London. Its main purpose was to carry commuters between the major railway terminus at Waterloo and the financial district around Bank.

Because it has no intermediate stations and is used heavily during weekday commuting hours, the line is sometimes nicknamed “The Drain.” It is entirely underground and does not operate a regular Sunday service. The route became part of the Underground network in 1994, when responsibility transferred from British Rail.