Suhua Highway

With a portion built alongside very steep cliffs high above the Pacific Ocean, it is considered to be one of Taiwan's most dangerous but also most scenic drives.

The narrowness of the footpath, dictated by the extreme cliffside topography, meant that its military value far outweighed its economic benefit, and it was subsequently abandoned and rebuilt several times.

Eventually it was widened by the Japanese colonial government; with nine bridges built, 14 tunnels constructed, and road surface covered with gravel, the highway was opened to vehicular traffic in May 1932.

With no guard rails to speak of and falling rocks a constant threat, the cliffside Suhua Highway was regarded as one of the most dangerous in the world.

Calls for improvements of the dangerous highway gained urgency in 2010 after over 20 people traveling along the road were killed by landslides caused by Typhoon Megi.