Maybe I missed it, I didn't see where the data came from. I am wondering if someone did scans of the city with something that generates point cloud data. Or maybe extrapolated from a 2d satellite and then later fixed by humans?

I wonder how hard it would be to make one of these of my town.

Surely there's publicly available lidar data that I could import into some software to slice it into squares small enough for me to 3D-print? Although I guess I'd have to make sure I'm not just printing noise where trees are...

https://vaxer.stockholm/en/visit-us/the-stockholm-room/