What would you do if you only had one day in Paris? When I knew my husband and I were going to be in France for a week in late March and that we would only have one day in Paris, I started researching and dreaming. I had been to Paris twice before, once as a seventeen-year-old high school student on a class trip, and again in my early twenties with a heavy backpack on my back, and only a few hours before I caught a train to Le Havre to take the ferry to Ireland. Both trips were quick and furious, and mostly what I remembered was one crowded,…