2. Hua Shan, China
China’s Hua Shan mountain pilgrim walk near Xian is referred to as “the most dangerous hike in the world”, but that doesn’t stop countless people from taking the precarious trek (some wearing flip flops!). They traverse the vertical mountain walls over a series of rickety ladders, crumbling stone steps, disintegrating wooden planks and rusty chains bolted into the cliff face. At 2000m above sea level, one misstep and you’re done. The reward, for those who make it, are a series of sacred mountain temples and a delightful tea house. It’s a big risk to take for a cup of tea, however. About a hundred people are rumored to die on this walk every year, although official stats are hard to verify.