Light fantastic! An installation by artist Damien Fontaine at Les Chrysalides de Saint-Jean Cathedral during the rehearsal for the Festival of Lights in central Lyon, France. Photograph: Robert Pratta/REUTERS
What I love about this photo is the color of the sky; you can tell that it’s a winter’s night, cloudy and grim and lit from the world below. It reminds me of a trip to Paris when I was 21 at this time of year and the way the night looked then.