2. Guoliang Tunnel Road (China)
The Guoliang Tunnel is carved along the side of and through a mountain in China. The tunnel links the village of Guoliang to the outside through the Taihang Mountains which are situated in Huixian, Xinxiang, Henan Province of China. The tunnel is pretty scary with 30 windows of various sizes and shapes and it has been dubbed as the road that does not tolerate any mistakes. Most accidents in the tunnel are primarily caused by the neglect of the traveller.