Iroha-Zaka, Japan

This one is almost deadly to look at in its picture form but in reality, the 48 curves strong road is both thrilling and exalted to drive through. The road connects central Nikko to Oku-Nikko and each one of the 48 letters is matched by the 48 letters of the ancient Japanese alphabet. Nothing like a little old-school culture to improve your drive even more, right?!