With nearly 13 million visitors, 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- new attractions already added to the park include Finding Nemo Submarine Voyage, Toy Story Mania, World of Color, and coming soon Goofy's Sky School 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 .