Today, I was at the Coordinates 47.3667 N, 8.5500 E from the teaser. It's in fact no prison, but an office building under preservation of sites. I made three pictures, two of the building itself and one of the plaque where some historical background is written on:
Translation:
"Rear Falcon-Castle"
-1850: Complex: Cigar factory in truss-construction-style, created by Wilhelm Waser (1811-1866).
-1867: Conversion to a farmstead in swiss woodwork-construction-style, conducted by Theodor Geiger (1832-1882) for textile manufacturer Rudolf Schoeller from Breslau.
-1870: Extensive construction to convert the building into a free- and brick-stone structure, by Th. Geiger, street side as Renaissance-Palazzo.
-1914: The construction receives the look it maintains to this day from Richard von Muralt (1882-1957).
[under preservation of sites of historic interest since 2003]
PS: This is my first post, so hello everybody! Been reading this forum for a long time now, so I thought it was time to create an account.