Falerii Novi down under

Well, that's wonderful. From Entire Roman city mapped without digging from the History Blog.

The GPR also revealed water pipes connected to a rectangular structure — believed to be an open-air pool — in the southern district of the city. From that starting point, archaeologists were able to map the water pipe network of the entire town. They run underneath the buildings, not along the streets as usual. This means the city was planned to the point that the water conduits were installed before the buildings went up. That is not something you see a lot in the third century B.C. when Falerii Novi was built.

Click to enlarge.