Wuppertal Schwebebahn or Wuppertal Floating Tram is a suspension railway in Wuppertal, Germany. It is the oldest electric elevated railway with hanging cars in the world and an almost unique system. http://en.wikipedia.org/wiki/Wuppertal_Schwebebahn
"An eastbound BNSF Q train passes over a beautiful waterfall east of Skykomish, WA just after passing over the Foss River Trestle."--Would you climb up underneath this bridge? Would you stay when a train came?