"Another Marriott hotel that's using scent to further its brand message is St. Regis and its signature 'Caroline's Four Hundred,' which was created with Arquiste in 2015 and inspired by Caroline Astor, the matriarch of the founding family. 'The scent captures the exotic woods of her ballroom, along with notes of her favorite flower—American Beauty roses—as well as the potted palms and apple blossoms that would line the hallways of her legendary Gilded Age parties,' says Edmundson."