The Postal Museum is located near to the Mount Pleasant Mail Centre in central London and the Postal Railway, known as 'Mail Rail', is a six-and-a-half-mile long network running under the capital’s streets, from Paddington in the West to Whitechapel in the East. It opened in 1927 and, at its peak, carried some four million letters a day.

As part of this exciting exhibition, visitors are able to ride through underground tunnels in purpose-built trains and uncover the rich history of the Mail Rail. The immersive ride uses onboard audio commentary and large-scale projections to bring the London Postal Railway to life in glorious, panoramic colour.

An accessible screen-based version of the show is available at the start of the experience, for visitors not able to ride the trains.