Normally when you're driving, you car follows the laws of gravity, right?
Well, not everywhere. There's a spot in southwestern Wisconsin where if you stop your car and put it in neutral, it seems to roll uphill. It's called "Gravity Hill" and it's along County Highway U just south of Shullsburg, a mining and cheesemaking town in Lafayette County.
Basically, you come down a slight hill and at the bottom you see the sign for Gravity Hill, along with some instructions. If you stop at the specifically-marked spot on the road (noted with spray paint), stop your car, and shift it into neutral, your car will begin rolling backwards - and seemingly up the hill.
Are you really rolling up a hill? Or is it an illusion and the hill isn't really an uphill? This is mining and lead country - maybe some magnetized rock is doing the job? It's a topic of debate.