One of several locations in the world where the laws of physics seem not to apply, the Mystery Hole is a force to be reckoned with. In fact, if you're prone to vertigo, hypertension, or heart troubles, you are asked to not enter. The illusions are not out of the ordinary for such an attraction - see a ball roll uphill, a person floating in the air, and rooms built in such a way to give the impression that the environment is off-kilter. Admission is $7 per person so it's worth going at least once in your life. Beware - cameras, phones, and other electronic equipment are strictly forbidden.