The London Underground celebrates its 160 year anniversary this year, making it the oldest underground network in the world.
The whole network began with the Metropolitan Railway which constructed a railway that covered 6km (3.75 miles) and opened on January 10 1863.
The railway proved extremely popular from its first day, carrying 36,000 passengers and more railways were quickly proposed.
Today the Tube handles up to five million passenger journeys a day. At peak times, there are more than 543 trains whizzing around the capital.
The network has expanded to 12 lines and serves 272 stations, making it one of the busiest metro systems in the world.
We’ve taken a look at passengers riding the London Underground over the years.
1. July 1936: A passenger opening one of the doors on the Hammersmith and City Underground Line, which have been fitted with new buttons for opening and closing doors. (Photo by Fox Photos/Getty Images)
The Hammersmith and City Line is the second oldest line on the Tube network
2. A traveller buys a London Underground season ticket from a vending machine at Highgate Station in London. (Photo by Fox Photos/Getty Images)
Today over 150 railway station ticket offices are proposed for closure in London.
3. April 12 1957: Guitarist Brian Hinton busking to travellers on the London Underground. (Photo by Express/Express/Getty Images)
Today licensed buskers have a unique audience of around 3.5 million Tube passengers every day.
4. English artist, journalist and political activist, Caroline Coon, on a London Underground train, February 1972. (Photo by David Cairns/Daily Express/Hulton Archive/Getty Images)
Trained as a figurative painter, Coon became involved in the 1960s underground movement in London while attending art school.