<P> In 2000, Premier Parks assumed the Six Flags Theme Parks, Inc. name and continued re-branding its parks, including the Geauga Lake park into Six Flags Ohio and Riverside Park to Six Flags New England . Six Flags began a vigorous expansion, attempting to branch out internationally, acquiring numerous properties across the USA, plus the Walibi chain, and the historic Belgian park Bellewaerde in Europe, La Ronde in Montreal, Quebec, Canada, and Reino Aventura in Mexico . Three of those parks were re-branded as Six Flags parks: Walibi Flevo became Six Flags Holland, Walibi Wavre became Six Flags Belgium, and Reino Aventura became Six Flags Mexico . </P> <P> In 2001, Six Flags acquired the former SeaWorld Ohio from Anheuser - Busch, merged it with the adjacent Six Flags Ohio and re-branded the combined park as Six Flags Worlds of Adventure . The park was positioned to compete against northern Ohio's Cedar Point . </P> <P> In 2004, Six Flags began to close and sell properties in an effort to help alleviate the company's growing debt . On March 10, Six Flags sold its European parks, with the exception of the Movie World park in Madrid, Spain, to Star Parks, a division of Palamon Capital Partners . The Madrid park was sold back to Time Warner and renamed "Parque Warner Madrid". In April, Six Flags determined that the investment required to keep Worlds of Adventure competitive with Cedar Point would be too great, leading to that park being sold to Cedar Fair . These sales raised $345 million in an effort to relieve Six Flags' massive debt . </P> <P> In 2005, Six Flags endured even more turmoil . Some of the company's largest investors, notably Bill Gates's Cascade Investments (which then owned about 11% of Six Flags) and Daniel Snyder's Red Zone, LLC (which owned 12%), demanded change . On August 17, 2005, Red Zone began a proxy battle to gain control of Six Flags' board of directors . On August 29, Six Flags New Orleans was severely damaged by Hurricane Katrina . </P>

Where are all of the six flags located