Six Flags Great America celebrates its 50th anniversary with new shows, food, and experiences June 20–Aug. 9, 2026.

California’s Great America will open a milestone season Saturday, marking the Santa Clara amusement park’s 50th anniversary.

Six Flags Great America, Lake County’s iconic 300-acre amusement park, is marking its 50th anniversary this year and has ...

Six Flags Great America is celebrating 50 years of operation this season. The theme park in north suburban Gurnee, Illinois, opened on May 29, 1976, as Marriott’s Great America. Things have certainly ...

Since opening as Marriott’s Great America in 1976, millions of visitors over generations have seen the theme park in Gurnee ...

Six Flags Great America in Gurnee is adding several new events for its 2026 summer season as part of its 50th anniversary, ...