Book excerpt: Walking London is the essential companion for any urban explorer―visitor or native―committed to discovering the true heart of one of the world's greatest capital cities. In 30 original walks, distinguished historian Andrew Duncan reveals miles of London's endlessly surprising landscape. From wild heathland to formal gardens, cobbled mews to elegant squares and arcades, bustling markets to tranquil villages―Duncan reveals the pick of the famous sights, but also steers walkers off the tourist track and into the city's hidden corners. Handsomely illustrated with specially commissioned color photographs and complete route maps, the book provides full details of addresses, opening times and the best bars and restaurants to visit en route.