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(File Photo)

Guabi Road

Built on the wall of a steep cliff, the breathtaking Guabi roads reach the top of the mountain. China has six roads like this which are mainly located in Taihang Mountains and southeastern Shanxi province. The roads are regarded as the "Ninth Wonder," "one of the world's 10 most advantageous roads" and "one of the 18 most exotic roads in the world."