Exploring London's hidden underground Mail Rail tunnels

Several days a month, The Postal Museum opens up the 100-year-old Mail Rail tunnels for exclusive underground walking tours. Discover secret passageways, deserted tunnel tracks and abandoned platforms as you explore parts of the railway that are otherwise inaccessible to the public.

Led by an expert guide, listen to fascinating stories about the staff who built, operated and maintained the underground railway over the course of 100 years. It's one of London's best kept secrets.

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