We’re staying in a pretty grungy area of Paris, as close as it’s possible to be to the Gare du Nord. Not many sites, only the Eglise St. Vincent-de-Paul, started by Jean-Baptiste Lepère and completed by Jacques Hittorff:-

A nice local market, the Marché St. Quentin:-

And we walked down to the Passage Brady:-

In general, Paris has kept its historic character so much better than London: less demolition, less new build, a policy of retaining smaller shops:-