Secret London: Exploring the Hidden City, with Original Walks and Unusual Places to Visit (New Amer New Updtd)Paperback - New Amer New Updtd, 1 January 2009

In more than 20 miles of original walks, distinguished historian Andrew Duncan uncovers London's best-kept secrets. From ancient waterways and the vast network of tunnels that weave their way beneath the city's streets to easily missed courtyards and gardens--each walk is full of surprises.