This guide strips away the bricks and tarmac to uncover London's hidden landscape. It explores the honeycomb of structures that lay under the streets, from the government's vast system of offices and tunnels under Whitehall, to abandoned underground stations, brick-lined lakes and Clerkenwell's network of subterranean prison cells. Above ground, the book guides the reader through London's historic estates, narrow alleyways and cobbled mews, penetrating the exclusive world of the City's livery companies and the gentlemen's clubs of St James's. Also provided are recommended walks, detailed maps and photographs.