Luca Mori, an Italian systems analyst who blogs, used Google
Earth Maps to rummage around his village of Sorbolo, near Parma (near Bologna). He thought he saw “anomalies.” For the duration of August he measured them, explored them, asked around, and eventually called up professional archeologists.
As they do in Italy, the archeologists had a look, only to find a previously undiscovered Roman villa! Luca has now made it to Italian television news, he writes.
All this is in Italian, but he has numerous posts over the past month detailing his search, including one with a map detailing the “anomalies”.
(Via Intempestiva, who first saw it on TV.)
[Update 15.44 UTC: Being in a bit of a rush earlier, I forgot to add the big picture: This is what you get when you twin deep local knowledge with democratized geographic tools. Anybody else flying over that region would have assumed there was a known local explanation for the anomaly, but it took Luca to know there wasn't.]