Originally founded as a Roman colony in the 4th century BCE, the site of Interamna Lirenas lies in the Liri Valley in Southern Lazio, about 50 miles south of Rome itself. After it was abandoned around the year 500 CE, it was scavenged for building materials and, over time, its remains were completely lost from view. Today, the site is an uninterrupted stretch of farmland, with no recognisable archaeological features. Now, researchers have successfully produced the first images of the ancient site, using geophysical methods that allowed them to look beneath the surface of the earth and map the layout...