Sainte-Chapelle, a hidden gem within the Palais de la Cité, is a Gothic masterpiece that seems to defy the bounds of architecture and art. 

Commissioned by King Louis IX in the 13th century to house his collection of Passion relics, including the Crown of Thorns, this chapel is a celestial spectacle of stained glass and stone. The upper chapel's 15 magnificent windows create a kaleidoscope of light and color that tells the biblical story from Genesis to the Resurrection, enveloping visitors in a divine glow. 

Sainte-Chapelle is not just a chapel; it's a testament to the power of faith and the pinnacle of Gothic beauty.