French Coffee Paris Street Cafe

Everyone knows that there are many cafes on the streets of France, especially in Paris: the most famous are Caf de flore and les deux maggots, two century-old shops in my avatar on the Rue Saint-Germain. What I am going to tell you today is not how fragrant the coffee is in these two old shops, which is not the main reason why these two coffee shops are so famous so far; nor are they.