Real world 3D enviroments in BlenderBlender is the free and open source 3D creation suite

Features

Import of 3D buildings from Google Maps

Import of OpenStreetMap data with basic textures

Import of OpenStreeMap data with late evening textures

Import of satellite imagery and terrain

Import of OpenStreetMap data with basic 3D assets

More details: click here

An editor for using custom facade textures

Import of forests from OpenStreetMap

A base version with reduced functionality