It was the sketchiest road I've ever traveled when I drove the famous 129 in North Carolina/Tennessee. I don't have any personal photographs, but this particular piece of road is known as "The Tail of the Dragon" and is a mecca for sports cars and motorcycles. The road itself is a narrow 2-lane road (1 in each direction) that is carved into the hills. There are 318 curves in 11 miles. Some are hairpins; others are a little less aggressive.
I wanted to take a motorcycle to it for years, but never did --- finally about 15 years ago we drove near it, and I took my 'cage' through it. I was tired when I got there, but after the 11 miles I was exhausted. I quite literally was having to think about how to turn the wheel.
I'm actually surprised it hasn't been shut down -- lots of bikes are taking it at excessive speeds not in frequently crossing the centerline into oncoming traffic. Its not pretty.