Imagine walking through a town that looks like it leapt straight out of a fairy tale book. Pastel-colored houses with wooden beams, narrow cobbled lanes, and serene canals reflect the charm of another era. Welcome to Colmar, a gem tucked in the Alsace region of France — and one of the most Instagrammed towns in the country.

Tucked quietly behind the thick walls of the former royal palace on Paris’ Île de la Cité lies a chapel so stunning, it feels like stepping into a kaleidoscope made of medieval dreams. Welcome to Sainte-Chapelle, one of the most breathtaking expressions of Gothic art and architecture in all of France—and yet, somehow still overlooked by many visitors.