El Camino Del Rey

El Caminito del Rey (English: The King's little pathway) is a walkway or via ferrata, now fallen into disrepair, pinned along the steep walls of a narrow gorge in El Chorro, near Álora in the district of Málaga, Spain. The name is often shortened to Camino del Rey.
The walkway is one meter (3 feet and 3 inches) in width, and rises over 100 meters (350 feet) above the river below. It is currently in a highly deteriorated state and there are numerous sections where part of or the entire concrete top has collapsed away. The result is large open air gaps that are bridged only by narrow steel beams or other support fixtures. Very few of the original handrails exist but a Via ferrata safety-wire runs the length of the path.
Several people have lost their lives on the walkway in recent years and after two fatal accidents in 1999 and 2000,[2] the local government closed both entrances.

More info about the "Caminito": Wikipedia