This was captivating! Professor Michael Scott in collaboration with
ScanLAB Projects uncover the subterranean infrastructure of Roman cities such as: Naples, Venice, Rome and Florence. I’ve just watched the Naples episode: Scott visits a series of the city’s underground tunnels and follows how the volcanoes’ eruptions have altered the city’s morphology.

High-precision laser-beam is used to read solid surfaces and, rather than building up an entire 3D model, it processes this image of an area as a series of points that make an overall cloud of how an area appears (…) 3D images are made possible using FARO 3D scanning equipment. The resulting point-clouds are also used for 3D virtual reality experience that can be viewed on the BBC website in browser or through a VR headset

Beau Jackson article

The images and the VR is breathtaking. Especially the ones retrieved from underwater. Image 2 belongs to the visual reconstruction of an ancient Roman villa that has been submerged. These were made possible through 3d scanning during an underwater dive to its remains. A must watch.