Oh Wow!! I was very happy to see this post!! I know that isn't nice, but I thought it was just me!! I such a fear of heights, and Vertigo as well. When you add curves I almost can't stand it! We just made a trip to Yellowstone, Rushmore the Badlands and Rocky MT. National park on the return trip. I will NEVER go to the Rocky Mt. area again. I was so sick....but, it was beautiful. I don't know how my husband does it!! Putting up with me and driving over a mountain without guard rails most of the way!!