Global undergrounds : exploring cities within Over the last two centuries the worlds cities have undergone dramatic vertical above ground transformations. But at the same time they have sunk themselves into the ground in the form of sprawling tendons of tunnels caverns and bunkers conduits for transport utilities and communication or spaces of shelter and storage. Global Undergrounds charts the global reach of urban underground spaces collecting 80 stories of subterranean sites around the world to reveal the profound but often unseen ways they have changed our lives. Illustrated with breath taking photographs this book exposes the remarkable diversity of manmade underground environments from their astonishing range of architectural approaches to the many cultural meanings they carry whether as places of hope fear memory labour or political resistance. Undergrounds are places that can tell a citys oldest stories or foresee its most distant futures; they are places ultimately of both incredible depth and breadth serving city dwellers not just with the logistics of day to day life but as crucial parts of a citys mythology.