Jiancing Historical Trail in Taiwan has had two leases of life during its long existence, but both of them have now come to an end. At first, it was a railway built for a logging company. When the logging topped, it became a popular hiking trail for locals and tourists alike.
That would probably still be happening now, but much of the trail was washed away by a typhoon in 2013. Only 900 meters of track survived the natural disaster, and even that isn't safe to walk on.