I can't believe that nobody has mentioned the ZIPPER! That ride still scares the crap out of me, and just last year initiated my son into the terrifying world of carnivals...:) Outside of that, I don't really like flat rides too much. Too much spinning, and not enough change of scenery. Most of them make me sick.
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;)Rollercoasters are like parrots...if you take care of them, they should outlive you;)