More specific? "Uniquely artistic" - the method of storytelling is unlike most everything else done.
THE LION KING: African masks and puppetry.
AVENUE Q: Hand-puppets and human.
CAROLINE OR CHANGE: Singers representing objects.
SPRING AWAKENING: A period German play with modern pop-style songs.
BIG RIVER: Told through sign language.
HELLO DOLLY, GYPSY, GUYS AND DOLLS, PETER PAN, SEUSSICAL, URINETOWN, SPAMALOT, THE PHANTOM OF THE OPERA, MAMMA MIA!, etc. are all told traditionally, for example.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle