People Drone Photography :
In southern Portugal Touch-Free Archaeology Reveals History With Lasers, Drones – via National Geographic 03.04.2015 | In southern Portugal, researchers are using cutting-edge, noninvasive technology to study the Roman ruins of Ammaia. This three-dimensional sketch shows what the town, founded in the first century A.D., would look like in its current environment. Photo: Illustration of Ammaia