impressiveness, grandness, magnificence, richness -- (splendid or imposing in size or appearance; "the grandness of the architecture"; "impressed by the richness of the flora")
magnificence, brilliance, splendor, splendour, grandeur, grandness -- (the quality of being magnificent or splendid or grand; "for magnificence and personal service there is the Queen's hotel"; "his `Hamlet' lacks the brilliance that one expects"; "it is the university that gives the scene its stately splendor"; "an imaginative mix of old-fashioned grandeur and colorful art"; "advertisers capitalize on the grandness and elegance it brings to their products")