I'm sure a few of you have already seen this, possibly without the original sound. It's a video that seems to have been filmed by a Daniel Ahnen, who may have passed away in the Himalayas in May. It shows a hike along a partially collapsed elevated walkway, El Caminito del Rey, which runs between two hydroelectric power stations in Spain.
The walkway is over a century old and suggests the post-apocalyptic. The viewpoint might help visualise this kind of trek in roleplaying, or inspire fictional travel. It makes me think of Risus Monkey's Karst Chantry one-page adventure, but also this approach to roads in an adventure at NetherWerks and this to rivers in another at Servitor Ludi.