View from the 20-Schilling-Blick in NW direction to the Polleroswand (centre, 979 m) and the Rax with Heukuppe (left central background, 2007 m). The bridges of the Semmering Railway are the Kalte Rinne Viaduct and the Krauselklause Viaduct. This railway line, designed by Karl Ritter von Ghega, has been in operation since 1854 and is listed as a UNESCO World Cultural Heritage.