Sometimes there is just something so idiotic that you absolutely have to partake in it! That would be the Bonneville Salt Flats. You drive your car on a solid salt lake - why, I really don't know. But, of course, I had to do it. There's not much to say -- you just speed around on the solid salt. It was really kind of fun and I was glad I went to see it when I was passing through Wendover.
If you find yourself anywhere near here, go see it.
p.s. BE SURE to wash your car several times after you leave, especially under the wheels. The salt gets into the undercarriage of your car. Even after 1 or 2 washings, salt was still pouring out.