Planet Earth Photos

and there are 27 satellites that surround our earth and each time a specified part of the earth there are three satellite placed in certain angles, taking pictures of this part of the earth and all these three images are combined to obtain 3-D image of the planet earth

satellites
or perhaps nanobots capable of flying capture images that are invisible to the naked eye

In 2000, the space shuttle in orbit around the Earth and the Radar Topography mapped over the world. That was probably just the dimensionalness three. The digital elevation model accuracy is something like 30 or 90 meters (horizontal). As for the photos, they have been taken in recent years by satellites or aircraft in areas where there are high details.

They have satellite photos in 2D. 3D models are made by people who look at photographs of the building and construct 3D CAD programs.