A group of amateur archaeologists-aided by caving expert group Sotterranei di Roma (Underground Rome)-are using remote-controlled robots, 3D scanners, and lasers to map ancient Roman aqueducts that had once provided the city with fresh water. A six-wheeled "archeo-robot" is used to navigate along passageways which are too small or dangerous for the team members to enter. The remote-controlled robot is equipped with two computers, three high-definition cameras, and laser sensors. >>>Read more.