…maps displayed on flat-screen monitors are always…well, flat

Paper is a traditional medium for maps. Paper's also flat, so showing 3d on 2d is not a new problem. One solution is contour maps. Here in the US, there are 'topo' maps made by the USGS. I've seen similar for the UK, called, I think, 'ordinance' maps. Good intro to reading them here, but the TL;DR from a backcountry hiker is that if the lines are jammed close together, you're gonna get tired. :-)

In the US the USGS topo maps are not free (in spite of having been produced with taxpayer dollars — don’t start me…) but useful enough that I buy the ones for where I'm going to hike, if I don't know it well.

I found a set for Ukraine here (click a quadrant to see the map; click the map at the top to see more quadrants). They seem to show marshy (or agricultural?) ground as green, orange as built up and black rectangular as urban. Anyone care to explain?

I'm sure Tom has maps like these, but I’d hope they might help some other readers…