"Sleeping Beauty" was made while Walt Disney was building Disneyland (hence the six-year production time). To help promote the film, Imagineers named the park's icon "Sleeping Beauty Castle" (it was originally to be Snow White's). An indoor walk-through exhibit was added to the empty castle interior in 1957, where guests could walk through the castle, up and over the castle entrance, viewing "Story Moment" dioramas of scenes from the film, which were improved with animated figurines in 1977. It closed shortly after the September 11, 2001 attacks, supposedly because the dark, unmonitored corridors were a risk. After being closed for seven years, the exhibit space underwent extensive period refurbishment to restore the original 1957 displays, and reopened to guests on November 27, 2008. Accommodations were also made on the ground floor with a "virtual" version for disabled guests unable to navigate stairs. Hong Kong Disneyland opened in 2005, also with a Sleeping Beauty Castle, nearly replicating Disneyland's original design.