El Caminito del Rey, a vertigo route along a pedestrian walkway attached to a gorge: https://www.outono.net/elentir/2024/04/11/el-caminito-del-rey-a-vertigo-route-along-a-pedestrian-walkway-attached-to-a-gorge/ Until 2014 it was known as one of the most dangerous ways in the world.