If you go onto google maps and zoom in very closely, you can see what is clearly a low poly mesh, not a flat image. The individual triangles are very distinct.
I'm talking about the ones in the OP. The image was flat and no 3D models were on it. You could rotate the image and the buildings would still be slanted.
Here you can see I rotated the view in Google Earth.

Here's the same view with 3D buildings enabled. You can see the buildings slanted underneath, meaning the original image I posted was in fact a flat image taken at an angle giving a 3D perspective instead of modeling done on the buildings.
