Stretching high above a river valley, this bridge near the Nepalese town of Ghasa was built for a very practical reason. So long that it earned the adjective “hanging,” the crossing was made to ease traffic congestion caused by local animal herds. At first glance, it certainly appears to be one of the most extreme and dangerous places on this list. However, the bridge sees a high amount of traffic daily, with herders and farmers using it to move goods to market. So, in fact, this walkway has proven capable of handing a large amount of weight. Ghasa is on the popular Annapurna Circuit, a widely used trekking route through the Himalayan foothills.