Alameda County Fair

Fair-goers ride on a swing ride at the Alameda County Fair on June 23, 2011, in Pleasanton, California. (Credit: Justin Sullivan/Getty Images)

California Screamin'

The "California Screamin" roller coaster attraction is in the Paradise Bay section at Disney's California Adventure theme park in Anaheim, Calif. (credit: Scott Nelson/Getty Images)

Magic Mountain's "Deja Vu" Roller Coaster

Six Flags Magic Mountain's "Deja Vu" in Valencia, Calif., is billed as the world's fastest and tallest suspended looping boomerang roller coaster. (Credit: Jason Kirk/Getty Images)

Santa Cruz California Beaches and Boardwalk

Visitors ride the Giant Dipper roller coaster at the Santa Cruz Boardwalk on July 3, 2008, in Santa Cruz, California. (Credit: Stephen Dunn/Getty Images)

Jurassic Park: The Ride

Visitors enjoy "Jurassic Park: The Ride" at Universal Studios in Hollywood, July 20, 2010. (Credit: Gabriel Bouys/Getty Images)

Pacific Amusement Park

The sun shines down on a roller coaster at the Pacific Amusement Park on the historic Santa Monica Pier. (Credit: Mark Ralston/Getty Images)

The San Diego County Fair

Fair-goers enjoy a ride at the San Diego County Fair on Wednesday, June 29, 2005, in Del Mar, Calif. (Credit: Sandy Huffaker/Getty Images)

Disneyland's Re-Launch Of Space Mountain

Crowds gather outside the re-launch ceremony of Disneyland's Space Mountain attraction at Disneyland on July 15, 2005, in Anaheim, California. (Credit: Matthew Simmons/Getty Images)

California Adventure Theme Park

"The Sun Wheel" ride glows in the dusk during the grand opening of Disney's California Adventure theme park on Feb. 6, 2001, in Anaheim, Calif. (credit: David McNew/Getty Images)

The San Diego County Fair

"The Wave Rider" spins riders around at the San Diego County Fair on Wednesday, June 29, 2005, in Del Mar, Calif. (Credit: Sandy Huffaker/Getty Images)

The Twilight Zone Tower Of Power

Fans line up for "The Twilight Zone Tower of Power" ride at Disney's California Adventure theme park in Anaheim, Calif. (Credit: Frederick M. Brown/Getty Images)