One of them features what earth looked like millions of years ago in the Permian Period. The super continent featured on this map is called Pangea. This is before the continents split apart into what they are now. This map is accurate according to scientific theory.
The second one features Earth as it looks right now.
The third map features what earth will look like between 50 to 100 years from now if Global Warming continues and melts the ice caps. This model is also scientifically accurate according to theoretical models. Notice that in this map we have lost much of the rain forest as well as New Orleans and Florida. Millions of acres across Europe and Asia have been lost as well.
The height of the continents can be adjusted in max by changing parameters in the shell modifier
This model reminds me of a wall map display that may be used in a presidental hide out.
Permian Earth Map
Present Day Earth Map
Future Earth Map