A classic destination for motorcyclists, the infamous "Tail of the Dragon" is nestled deep in the Great Smokey Mountains. This 11-mile cambered stretch of U.S. 129 skirts the Tennessee and North Carolina borders, has no fewer than 318 stomach-wrenching twists and turns, and is not interrupted by a single intersection or driveway. The road is also extremely narrow with shoulders that either face the mountain or drop you off it. Almost every corner is blind and there's always someone coming round the other way. Mistakes made here are often met with dire consequences. Even so, with its misty mornings, habit of jackknifing trucks, and easy flow, this is simply the most badass stretch of U.S. roadway ever built.