Familiarity is the enemy of noticing, and the cure is a writer prepared to walk a well-known place slowly. Christopher Winn does exactly that with London in I Never Knew That About London, a title that doubles as a fair description of the listening experience.
The form is the compendium rather than the narrative. Short pieces, curiosities, the plaque you have passed a hundred times and the story sitting behind it. Books of this shape live or die on the quality of the selection, and this one has held a large audience since it appeared.
For Londoners it works as a corrective to familiarity. For everyone else it is a way of arriving in a city already knowing where to look.