Located in the Taihang Mountains of China, the small village of Guoliang is sitting on a mountaintop and was isolated from the rest of the world. The only way to reach it was to walk through a valley surrounded by steep cliffs, and then climb a series of cut out stone steps. Cut off from the rest of the world, the village was doomed to become a ghost town, unless a road could be constructed trough the cliffs.
This all changed in 1972. When the Chinese government decided it wasn’t worth to invest several millions into a road that would only be used by 300 people, the villagers decided to dig the tunnel road themselves. It was their only hope to get connected to the rest of the world.