In this video I show you how to make a tiny planet in Blender. We are using a Google Maps 3D capture but you can use a photogrammetry model or similar.
Here is downloadable link to the example model shown in the video:
https://sketchfab.com/3d-models/berlin-capture-12f6c9576a5b4472b3ce7e4322f25358
Here is a guide to capturing google maps models:
https://www.youtube.com/watch?v=F_XsmoZJmG8