1Guoliang Tunnel is one of the most famous tunnels in the world. It’s 1.2 kilometres (0.75 mi) long, 5 metres (16 ft) tall and 4 metres (13 ft) wide, located high in the Taihang Mountains of the Henan Province, China. It’s one of the famous Chinese tunnel roads. Road requires monk-like focus to drive. Even one mistake, locals say, means big trouble in little China.The tunnel, carved along the side of and through a mountain, opened to traffic on May 1, 1977, it’s quite a tourist attraction, giving the village a little too much unwanted attention, but some very welcome revenue. It took five years to build it. 4,000 hammers, 12 tons of steel… and quite a lot of chisels: This is how one of the most dangerous tunnels in the world was carved by just 13 villagers in remote China.Before its construction in 1972, the only access to civilization of the village of Guoliang, located high in the Taihang Mountains of the Henan Province, was some steep, narrow stairs embedded in the mountainside called the “Sky Ladder”, a treacherous, slippery climb even for the most nimble and sure-footed of the villagers or their rare company callers. Thirteen villagers headed by their chief, Shen Mingxin began the project, but several died during construction, so the others continued relentlessly. It took five years to finish this spooky tunnel.