El Caminito del Rey, Spain
Near the city of Alora in the Spanish province of Malaga, El Caminito del Rey (the King's Little Pathway) is considered one of the world's most dangerous trails. The path averages about a yard in width and sits on the side of a sheer cliff 300 feet above the bottom of a gorge. Originally built with concrete, parts of the walkway have eroded completely and only support beams remain. After several fatal falls, the government closed the trail a little more than a decade ago. However, some people still walk the Caminito aided by safety ropes. A major project scheduled to be completed in 2015 is meant to restore the eroded areas of the path and make the entire route safer.