Serge Lutens, Palais Royal
Perfumer Lutens designed his own house of beauty, outfitting the 15th-century Palais Royal space with glowing purple marble floors, a grand central spiral staircase and intricate celestial stenciling. Go for his playful fragrances (I enjoy the spicy Ambre Sultan) or simply to take in all the opulence.
Jardins du Palais Royal, 142 Galerie de Valois (1st arr.), 33-1-4927-0909, sergelutens.com