The Temple B or of Zeus Olympian, also known as Olympeion, was a Greek temple of the ancient city of Akragas, located in the archaeological park of the Valley of the Temples in Agrigento. (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.