General View Of Six Flags Discovery As Co. Announces Earnings [Getty Images]

Visitors ride the Medusa roller coaster at Six Flags Discovery Kingdom amusement park in Vallejo, California, U.S., on Monday, July, 23, 2012. Six Flags Entertainment Corp., an operator of theme parks, gained the most in more than two years as an increase in ticket sales fueled second-quarter revenue that topped analysts’ estimates. Photographer: Ken James/Bloomberg via Getty Images

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