3D imaging of Nottingham's caves

Laser imaging has been used to create 3D models of the cave system beneath Nottingham, England. The study includes views of the "Robin Hood" caves beneath the city's castle. (photos)

The 450 caves under the city date back to medieval times where they were used for brewing and cess-pits as well as dungeons. The project was funded by English Heritage and the University of Nottingham.