Here’s a map of science*!
The work, by Richard Klavans and Kevin Boyack, shows aspects of the connectivity of relations between scientific disciplines (colour key to the left), based on analysis of about 1.6 million scientific articles. Rather pretty isn’t it? And, yes, of course, very interesting to see the connectivity visualized like that.
Please visit their website to see how to visually slice all of this to highlight areas of the map by (a limited selection of) countries, regions, institutions, blue vs red state (!), etc.
There’s more information about the relationships in this Seed article, where there’s a more extended explanation of the meaning of the nodes, and how to draw links between the nodes. You can find out more about the authors, the algorithms used, and other information by going to this page.