Today, AD welcomes production designer Nathan Crowley to explain how he designed the sets for âWickedâ. Through his extensive use of practical effects, Crowley designed sets where Ariana Grande and Cynthia Erivo could shine and come alive as Glinda and Elphaba. From planting nine million tulips for Munchkinland to Shizâs 52-foot high set, Crowleyâs designs for âWickedâ are truly immersive and nothing short of impressive.