Guaoliang 'cliff corridor', China

The Wenling house road is far from the strangest road in China. This terrifying 1250m long, 5m high, 4m wide 'cliff corridor' is perched 110 metres up a cliff face in Henan Province, and is traversed by only the hardiest of drivers.

It was constructed in 1972 by 14 residents of the nearby Guaoliang village, who were so frustrated that the only route to their remote settlement was a flight of 720 steep steps that they took matters into their own hands. Local man Shen Mingxlen led 13 workers in chiselling a road through the rock face, despite having no electricity or heavy machinery. It took them five years to complete their 'corridor', which is dotted with 35 window sized holes, from which rock was dumped during construction. The men used 10 tonnes of drill rods and 4,000 hammers to complete their feat, and one died after slipping and falling.