Gioiosa Guardia was a city founded by Vinciguerra d'Aragona, elected under the reign of Federico III d'Aragona, located on Mount Meliuso, in Sicily. Currently, only a few old ruins remain. (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.
