I was in Scotland recently and in the Glasgow university Museum (the Hunterian) I found an amazing visualisation from 1848
This is literally a 3d model, created by James Thomson the brother of Lord Kelvin. From the sign in the museum: This is a visualisation of a mathematic model that shows the link between pressure and freezing point for carbonic acid and is based on measured data.
In the library of Edinburgh I found a nice overview of the length of rivers in Scotland. The rivers are visualised next to each other and in a more or less straight line.
- There are many charts of river length it seems