2Half Dome, Yosemite National Park, USA

Half Dome, one of the most iconic landmarks in Yosemite National Park, is a popular destination for hikers. The trail to the summit is a strenuous 14-16 mile hike, with a final ascent involving the use of metal cables bolted into the granite rock face. The cables assist climbers in scaling the steep, smooth surface, but they also pose significant risks. Slippery conditions, sudden thunderstorms, and overcrowding on the cables have resulted in fatal accidents. Falls are the leading cause of death, with many hikers underestimating the difficulty of the climb. Despite the dangers, thousands attempt the hike each year, drawn by the challenge and the stunning views from the top.