Amazing and dangerous tunnel road in the world - Guoliang Tunnel Road , China

This is considered to be one of the most dangerous roads in China. In fact this tunnel road is constructed to avoid the accidents. This is one of the prime tourist destination in China. This tunnel road is constructed in the   Taihang Mountains of China and the tunnel is 1.2 km long and the width is about 4 meters. This is available since 1977.