The Mandralisca Museum is the only museum in the city of Cefalù. Its foundation is attributed to Baron Enrico Pirajno di Mandralisca, who during his lifetime collected numerous art objects, which he then placed in his residence, where they can still be found today. The museum's headquarters also houses the museum and foundation's archive, based on which it is possible to reconstruct its history in detail. (Entry from the Italian Wikipedia page, CC BY-SA. Location marked by the OpenStreetMap community.)
In the app, check in on site: you earn a point and the AI guide tells you about the place in your language.