Leave it to the French to revitalize the art of perfume. Paris' newest perfumery, Iunx, is a Shiseido-backed boutique centered not around simple spritzing but around an "olfactory journey." Customers move through the mod 3,700-square-foot store testing more than 60 fragrances with the help of machinery—a lever here, a button there—that dispenses bursts of scent. It's an innovative means of sampling perfume, but then everything at Iunx is forward thinking. The fragrances are mostly unisex, among them the musky Strong Splash and the subtle Pure Water (each $125). At 48-50 Rue de l'Université; 33-1-45-44-05-46.