Think you know London? Think again. Behind unassuming doors and just a few steps from buzzing inner-city streets, London has a mind-boggling wealth of variety to explore - from hidden rooftop courtyards and Roman ruins to eerie foot tunnels beneath the Thames and clandestine cocktail bars. Whether it's a six-person sushi restaurant or token-operated book vending machine you're after, this book will guide you to the city's most unexpected places. Simply slide open the trick bookcase and step into your new favourite London haunt. This is part of a growing series of opinionated guides which offer straight-talking insider's advice on what to do and see in London.