Estimated Time: 11 minutes

At the beginning of our story, we walk through London's streets guided by the lights of the gas street lamps. Though modern electric street lamps have replaced most of the old gas lamps, a few are still left in the city. Watch this video about the people who still maintain the old lamps. (And, you may get a hint about Diagon Alley).

Watch this scene from Mary Poppins Returns, which includes a dance number about gas lamplighters.