Explore Secret Stories City of London: Trading Places Tour, a self-guided interactive walking tour to enjoy whenever you want. This tour is part of an Ordnance Survey series of bite-sized, tongue-in-cheek stories for you to read out loud. Expect nutty nature, smelly smugglers, raucous royals you get the idea. Learn about London\'s history, from its infamous markets to its diverse population, on this walk through the City from Leadenhall to Spitalfields and back. Total length: 1.67 miles; Suggested age range: 7+ Purchase this Tour (and more) in the Secret Stories App, available for free download from Android Play and Apple App store. You\'ll find more details of the tour and what it contains in the app!