The Kaltbad is the first large hotel on the Rigi, an immense caravansera [...]. As it came suddenly in sight it seemed to spring from the desolate mountain-side like a fairy palace or a splendid mirage. It was all alive with light; gay groups were strolling up and down its broad esplanade; gayer people inside were dancing to delightful music. It was a scene of absolute enchantment, and to this day I cannot make it real.
The New York Times, October 1, 1875