Discover the origins of architectural trends in Stone Town with the aide of local historian, John da Silva. John's tours point out subtleties in building structure that the untrained eye just won't catch. He'll show you how they built drainpipes into the walls of local homes only to come out again at the bottom of the wall to drain. Why did they do this Because the streets were so narrow, they put the pipes into the walls so no one would hit his head or catch his cart on the pipes as he walked by. John will point out old lattice work balconies, decrepit buildings, light fixtures and more than a handful of carved doors, each with its own story. You pace the tour by the questions you ask. This tour is highly recommended.