SeaWorld Florida, Orlando, FL

Attendance was up one percent from the previous year for this watery theme park-one of several Orlando sites on our list. The TEA/ERA puts SeaWorld’s 2007 attendance at 5.8 million.

Universal Studios Orlando/Islands of Adventure at Universal Orlando, FL

Like its rival Disney, Universal houses what ERA’s Christian Aaen calls a “destination complex” in Orlando, where two theme parks, Universal Studios Orlando and Universal’s Islands of Adventure, vie for 6.2 million thrill-seeking tourists.