The RhB confidently drives its customers not only through a spectacular mountain world, but also through the cultural landscape of Graubünden. The interior design takes up the tradition of local building culture and reinterprets it - an approach that has brought current Graubünden architecture to world fame. To create a clearly legible spatial structure, two themes were developed. As a modern interpretation of traditional wooden construction, the Vrin surface runs linearly through the entire train as a side wall. This is interrupted by the equipment cabinets, which appear as irregularly layered monoliths due to the surface of Val. The specially developed seat fabrics point to the English upper class as the inventors of tourism in the Swiss mountains. The fabric pattern in the first class, in combination with the straight-lined appearance of the side wall paneling, exudes a touch of “casual luxury”, while in the second class the blue tones convey an image of lively vivacity.