L'Avventura filmed at Villa Niscemi (private residence), Palermo. A villa overlooking the gulf, now the residence of the city's mayor, is where Claudia meets the party. On screen it's Villa Montaldo.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer. This is a street or a long feature — the coordinate is a representative point on it, not a single spot.
Planning the trip? The Italy travel atlas covers money, language and getting aroundand everything filmed in Palermo is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Palermo and it tells you what was shot around you, how to get there, and whether you can actually go in.
Download Venture for iOS Android