Nancy

Nicknamed ‘La Lanterne du Bon Dieu’ (God’s Lantern), the Cathédrale Saint-Étienne de Metz possesses the largest expanse of stained glass in the world — nearly 6,500 square metres of luminous storytelling. Built over three centuries, its soaring Gothic vaults reach 41 metres, channelling coloured light from masterpieces by Hermann von Münster, Valentin Bousch, and modern titans Marc Chagall and Jacques Villon. The effect is transcendent: on a sunny morning, the nave becomes a kaleidoscope of biblical narratives and abstract colour. The cathedral’s yellow Jaumont limestone glows warmly against the Moselle sky, while the Chapter House cloister offers a serene counterpoint. It is a masterpiece where architecture serves purely as a vessel for light.

An 18th-century masterpiece in urban planning, Place Stanislas is the crow jewel of Nancy’s UNESCO World Heritage ensemble. Conceived by the ex-Polish King Stanislas Leszczynski, this grand square connects the medieval old town and the 18th-century new town with an architectural rigor that feels both open and intimate. Gilded wrought-iron gates and gilded street lamps frame the Classically inspired façades of the Hôtel de Ville, the Opéra, and the Fine Arts Museum. At night, the limestone buildings glow warmly under the gold-leafed grilles, transforming the space into a living theater of light. A visit to Nancy is fundamentally a visit to this square, which encapsulates the Enlightenment-era ambition to blend civic duty with natural beauty.