"Kaiserwagen" (cars of the emperor) # 5 and # 22 of the Wuppertaler suspension railway (WSW) are leaving Loher Brücke station on the way to Oberbarmen, on a coffee and cake special tour, high above the Wupper river. The Wuppertaler suspension railway is a unique single rail system, rolling on wheels with double flange. The line is 13,3 km long from Wuppertal Vohwinkel to Oberbarmen.