With nearly 13 million visitors in 2008, the original Disneyland Park still ranks as one of America's Top 25 Visited Sites according to Forbes Traveler.  Disneyland Park and Disney's California Adventure continue a 1 billion dollar expansion with new attractions based on the successful Pixar films- adding the Finding Nemo Submarine Voyage, Toy Story Mania, World of Color in 2010, and The Little Mermaid- Ariel's Undersea Adventure scheduled to debut in Spring 2011. In 2012, Disney's California Adventure is scheduled to continue with a 12 acre expansion adding a new land to the park based on the Pixar animated film, Cars .