World's Most-Visited Theme Parks
Mike Aguilera / SeaWorld San Diego
No. 22 SeaWorld California, San Diego
Annual Visitors: 4,294,000
Attendance rose a healthy 13 percent last year thanks to a revamped killer-whale show and new sea-turtle attraction. This year's shiny new ride is the Manta roller coaster, which launches through a 270-foot multimedia tunnel whose walls are projected with images of rays, then pulls up to four Gs through banking turns, and culminates in a thrilling 54-foot drop.