The Perkins School for the Blind in Massachusetts just got a high-tech installation to help keep their students from getting lost around campus: a three-dimensional map that talks. Its miniature Monopoly-like buildings and other elements (which were 3D printed, by the way) are coated in conductive paint, so they can recognize when they're being touched. If someone does, the map will announce the building's or any other structure's name along with directions on how to get there. Some areas feature sound effects, as well -- a fountain gurgles, for instance, while a bell tower rings. Plus, it has a three-button menu that one can use to browse a spoken list of locations.