Tourism and Leisure Industry

Polar Express 4D at the National Aquarium

Childhood classic The Polar Express has seen many iterations in the last 25 years. It appeared in 1985 as a wonderfully illustrated book by Chris Van Allsburg, and won the 1986 Caldecott Medal for children's literature. The pencil illustrations turned computer animated with the release of the 2004 movie and simultaneously jumped into 3D with an IMAX version.In 2007, the National Aquarium, Baltimore began airing a so-called 4D version, which might more aptly be called...