LONDON Transport Museum’s Depot in Acton is throwing open its doors from April 21-24 for visitors to discover the art of the poster.

They can explore the museum’s world-renowned collection of transport posters dating from around 1905.

Expert guides will reveal how poster design has characterised London and its transport for more than 100 years.

The depot is a trove of transport treasure, housing more than 320,000 artefacts, including more than 30,000 posters, representing up to 7,000 designs.

A line-up of talks with artists, curators and historians will also be on offer at selected times across the four days.

Guests can also explore the museum’s collection of historic Tube trains, buses, maps, signs and curiosities.

On the Saturday and Sunday, the LT miniature railway will be running for visitors to hop aboard replica models of Metropolitan line trains between the 1920s and 1960s.

Timed tickets to must be booked in advance online. Adult tickets cost £15 and tickets for children cost £7.50. Children aged three and under go free. Concessions are available.

People living in Ealing, Hounslow and Hillingdon can enjoy a third off tickets. To book, visit: