D23: The Official Disney Fan Club and the Walt Disney Archives are proud to announce the return of the “Treasures of the Walt Disney Archives” exhibit to the D23 Expo. During the D23 Expo at the Anaheim Convention Center, August 9 – 11, 2013, this all-new exhibit curated specifically for the D23 Expo 2013 will feature: the 50th anniversary of Mary Poppins, ABC’s hit television series Once Upon A Time, and a look at the longstanding connection between Disney and L. Frank Baum’s beloved series of books about the land of Oz.