The Pont au Double, named after the nearby Notre-Dame Cathedral, is one of Paris' most romantic bridges spanning the Seine. This 19th-century iron bridge connects Île de la Cité with the Left Bank, offering magical night views of Notre-Dame's Gothic spires reflected on the river. Street performers often entertain visitors here, making it a perfect spot to soak in Parisian charm while strolling hand-in-hand with your loved one.