http://www.sixflags.com
2. Disneyland
http://www.disneyland.com
3. Disneyworld
http://www.disneyworld.com
4. Universal Studios
http://www.universalstudios.com
5. SeaWorld
http://www.seaworld.com
6. Busch Gardens
http://www.4adventure.com
7. Great America
http://www.pgathrills.com
8. Cedar Point
http://www.cedarpoint.com
9. Knott's Berry Farm
http://www.knotts.com
10. Discovery Cove
http://www.discoverycove.com