The Eternal Lab in the Solaris Temple.
These maps are not simple drawings or representations. They're more like... coordinates. Coordinates that could point to any location, or any moment in time, or any memory or dream or idea. And the map device takes you to it. Makes it real.
Creating a map is like channelling a voice who speaks in a language you don't understand, who tells you to go to a place you've never been. It's where art, superstition and science collide at high speed through thaumaturgy.