Rollercoaster 1 and 2
I believe this is
The Great American Scream Machine California Screamin' at Disney's California Adventure park. Jackson and I were standing in a 40-minute line for Toy Story Midway Mania (the first time, which is what prompted us to drag Jack back to see it himself the next day) which put us across the boardwalk and right next to the tracks to this thing that I wouldn't ride on a bet, unless that bet were for a million, billion dollars and a free eucalyptus tree with a koala bear in it right in my front yard. I'm not sure if these two videos truly capture the weirdness of what it's like to just stand there, slack jawed in the sun and gaping at a giant, peeled orange and suddenly have two dozen people screaming for their lives whoosh by at 60 m.p.h.