Level up your Zones' Thrill Level by fulfilling enough requirements in that Zone. You can fulfill requirements by placing the right type or number of Concessions or Decorations, and by placing the right number of Enchanted Attractions. Please note it is the number of unique Enchanted Attractions, not the total number of Enchantments in that Zone.

Tap on the Zone's namesake Attraction (like California Screamin') to see these requirements!