Lake Wales, Florida
Gravity Hills -- where cars inexplicably defy the laws of science -- lurk in every region across the America. Their locations are passed on by word-of-mouth, and they're frequented by cruising teenagers or families out for a thrill after church. Spook Hill is somewhat unique in that it's officially recognized by the town, and prominently marked for your uphill-rolling entertainment. There's a large sign on North Wales Drive explaining "The Legend" and how to experience the effect.
"Many years ago an Indian village on Lake Wales was plagued by raids of a huge gator. The Chief, a great warrior, killed the gator in a battle that created a small lake. The chief was buried on the north side. Pioneer mail riders first discovered their horses laboring down hill, thus naming it "Spook Hill." When the road was paved, cars coasted up hill. Is this the gator seeking revenge, or the chief still trying to protect his land?"