The Church of the Souls in Purgatory, or Church of the Souls in Purgatory, is a place of worship located at the center of the pier of the Purgatory peninsula, facing Ugo di Santonofrio square in Marina Corta, formerly Marina di San Giovanni di Lipari. (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.