Subterranean London : cracking the capital

Enhanced descriptions from Syndetics:

Now available in a new expanded edition, this collection of extraordinary images from beneath London's streets will fascinate anyone interested in what lies under the surface of one of the world's greatest cities. Peel back the layers under a London street and you'll discover a
haunting, dreamlike world of hand-laid brick sewers, forgotten
tube stations, World War II evacuation shelters, secret
government bunkers, and tunnel boring machines laying new
sewer, communication, and transport grids. Bradley L. Garrett
has worked with explorers of subterranean London to collect an
astonishing array of images documenting forbidden infiltrations
into the secret bowels of the city. This book takes readers
through progressively deeper levels of London's historical
and contemporary architecture below the streets. Beautifully
designed to allow for detailed viewing and featuring bespoke
illustrations by artist Stephen Walter, Subterranean London
reveals the locations few dare to go, and even fewer succeed in
accessing.