The closure of Six Flags' X2 roller coaster has drawn new attention to the risks associated with extreme thrill rides.
For years, X2 has been one of California’s most recognizable and extreme roller coasters, attracting thrill-seekers willing to experience its high speeds, massive drops and unpredictable rotations.
For a few minutes of pure, unfiltered, scream-out-loud fun, nothing beats a ride on a roller coaster. We've rounded up the world's most exhilarating rides, from old-school wooden wonders to towering ...