The Postal Museum
This family-friendly museum is an interactive ride through the history of the Royal Mail. From learning about the history of the Penny Black (and having a go at designing your own stamp) to attempting to sort mail while being tossed around in a mock-up of an early 20th-century mail-sorting train carriage, there's a lot to see and do here. The highlight is a 15-minute trip on the Mail Rail, the little-known underground train system under the capital which was used exclusively for letters and parcels from 1927 to 2003. Just be warned that a seat on the snug Mail Rail trains is not for the claustrophobic. Book online for the cheapest prices.
