We released an update to the Real World Terrain 2.0, a major feature of which is the ability to create buildings, trees, grass and the river, on based on real data derived from Open Street Maps.
It is very convenient. Pressing a button in the Real World Terrain, get the whole city, every building which will have a detailed meta description obtained from Open Street Maps.
In addition, we have increased many times the speed of Real World Terrain, reduced memory consumption. Now Real World Terrain can create really huge territories at once.
The new version is already available in the Unity Asset Store.