The decrepit footpath of Spain’s El Caminito del Rey floats like a broken chain of islands in the sky. The jagged mosaic of steel and concrete is precariously tacked onto the vertical cliff faces of...

The decrepit footpath of Spain’s El Caminito del Rey floats like a broken chain of islands in the sky. The jagged mosaic of steel and concrete is precariously tacked onto the vertical cliff faces of...