3. Guoliang Tunnel Road - China
This mountain carved tunnel runs 1,200 meters long, 5 meters high and 4 meters wide. This is one of the most dangerous roads in the world and is also called as "the road that does not tolerate any mistakes". Glimpses of scenic beauty which you will witness while passing the tunnel make it a trip of a lifetime.
2. Stelvio Pass - Italy
Stelvio Pass has one of the best continuous hairpin routes in the world and its 48 thrilling turns are meant for adventure loving souls. The road gets very narrow at some places and is very steep at some points. The scenery throughout this pass is absolutely stunning.