Fandom has recently added a new feature to all wikis that enables communities to design their own maps and pinpoint certain locations. And to show off this feature, here's a map of Hyper Dimension Gamindustri created with the map editor:
https://neptunia.fandom.com/wiki/Map:Hyper_Dimension
For more information, see https://community.fandom.com/wiki/Help:Interactive_Maps