Everyone loves a secret, and when it comes to someone with a past... even better. The Secret London season reveals juicy gems and magnificent oddities from around the capital. From a behind-the-scenes tour of a secret Tube station to illustrations of lost or little-known London aspects, discover the cool quirks - past and present - that make our capital so captivating.
Until 10 December, catch The Serco Prize for Illustration, which has 50 delicious depictions of secret London - from the city's only street lamp still powered by gas to foxes commuting on the Tube and a 'pigeon disco' held at Trafalgar Square.
The secret's out - pass it on.
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The Secret London season is at the London Transport Museum until 10 December. Tickets for The Serco Prize for Illustration - Secret London, 50 of the Best Entries, £13.50 (which allow free entry to the London Transport Museum for one year).
DISCOVER LONDON'S BEST CITY SECRETS













































