Six Flags Mexico, Mexico City, Mexico (2,054,000)

Hailed as the most popular Latin American amusement park, Six Flags Mexico is located in a Natural Preserve Area of the Tlalpan Forest and was once home to the orca Keiko of Free Willy fame. Thanks to animal right activists, the only creature in captivity at the park these days is Horstachio, who at 48 feet by 52 feet and 4,400 pounds is the largest piñata in the world. Baseball bat, por favor!

La Feria is located in Chapultepec Park, 16,000 acres of centuries old trees and numerous lakes. Once a temporary home to the Aztecs, it is now best-known for its roller coaster, the first in the country and one of just three Möbius wooden roller coasters in the world. (Möbius rides have the distinctive feature of one continuous track instead of two separate ones.)

For more information: Six Flags Mexico