On the southeast coast of France, where the Alps kiss the Mediterranean, lies a city so picturesque that artists, aristocrats, and Instagrammers have been swooning over it for centuries. Welcome to **Nice**—the unofficial queen of the French Riviera.

Imagine a cathedral—arched roof, stone pillars, acoustics that catch and carry every breath. Now imagine it carved not by human hands, but by ancient lava, ocean tides, and time itself. This is **Fingal’s Cave**, a natural sea cave hidden in the remote Isle of Staffa in western Scotland. And unlike any other cave, this one sings.