We’re away until January 4, but we’re re-posting some of our favorite pieces from 2015. Please enjoy, and have a happy New Year!In an unremarkable section of Paris, Roger Caillois saw hiding places for “floating beings.”Pity the Fifteenth! Paris’s …

In an unremarkable section of Paris, Roger Caillois saw hiding places for “floating beings.”Pity the Fifteenth! Paris’s most populous arrondissement is also one of its least celebrated. Stretching from the Front de Seine high-rises in the northwest…