In the 1980s , book publisher Harcourt , Brace , Jovanovich bought the park along with SeaWorld , Circus World ( later rebuilt as Boardwalk & Baseball ) and Stars Hall of Fame , but sold most of the businesses to Anheuser-Busch in 1989 . In the 1980s , book publisher Harcourt , Brace , Jovanovich purchased the park along with SeaWorld , Circus World ( later rebuilt as Boardwalk & Baseball ) and Stars Hall of Fame , but sold most of the businesses to Anheuser-Busch in 1989 .