RhB electric multiple units class ABe 4/4^II, Brusio spiral viaduct
Two RhB ABe 4/4^II EMUs passing the Brusio spiral viaduct valeward. A signature structure of the World Heritage-listed Bernina railway, it was built to limit the railway's gradient at that location within its specified maximum of 7%. Photo taken Sunday 22 June 2003. Photo: Steffen Mokosch (Steffen.Mokosch@web.de)