How does Google generate such 3d models?

Question

Google

How does Google generate such detailed 3D models on an industrial scale?
I know that anyone can add their handmade model to the map, but these models are not like that.
As if they were created by a computer using data, for example, from cameras, lasers, and all sorts of sonars.
In general, how does this actually happen?

Answer 1

Perhaps the best explanation