1Sainte-Chapelle
A 13th-century chapel that exists almost entirely for its stained glass: 15 towering windows of biblical scenes, glowing like jewels. No crowds at 2 PM on a weekday. A 15-minute walk from your hotel across the Seine.
Insider tip: Climb the narrow spiral staircase to the upper chapel where the glass is most intense; bring sunglasses if it's bright.






















