The most exquisite of Paris' Gothic gems, Sainte Chapelle is tucked away within the walls of the Palais de Justice. The chapel is illuminated by a veritable curtain of luminous 13th-century stained glass (the oldest and finest in Paris).

Consecrated in 1248, Sainte Chapelle was built to house what was believed to be Jesus' crown of thorns and other relics purchased by King Louis IX. The chapel's exterior can be viewed from across the street, from the law courts' magnificently gilded 18th-century gate, which faces Rue de Lutèce.