The oldest café in Paris (it opened in 1686!) located in Saint-Germain-des-Près in a hidden passageway. It is now a full-service restaurant (and feels like a museum as you can find incredible pieces of history like Napoleon's hat or letters between Marie-Antoinette and Louis XVI). Traditional French cuisine & friendly staff. I'd stop by for "un café/thé gourmand" to experience this incredible space filled with French history.