Unlike the Road of Death in the Yungas region of Bolivia, the Guoliang Tunnel Road in China doesn't claim hundreds of lives per year. This certainly doesn't mean it's a safe or easy drive, just that it is so remote that few people travel it.
Part of the reason for the unique openings and uneven walls is that the 3/4 mile long tunnel was actually built by hand in the 1970s to connect the village to the outside world. More fascinating pictures can be found at Dark Roasted Blend
http://slipofmind.blogspot.com/2008/05/road-of-death.html