Earth in Unity (like Google Earth/Microsoft FS)

Hi,

I am in need of something like Google Earth inside of Unity so I can quickly go to any part of the planet and populate it with any data I want. The only information/assets I have found seem to only get one piece of terrain at a time. What is the best way to get Earth into Unity?

Also, is there any way to get bathymetric data to simulate the ocean floor?

Thanks.

This is not what you are looking for, but I thought it might be useful perhaps:

It’s freely available height information of the whole planet.