This repository contains scanned statue models which came from the Three D Scans project. These models are optimized (decimated) for real-time rendering use, especially for use with Unity game engine.
See their Info page for details. My understanding is that these models are free to use for commercial/noncommercial purposes. Acknowledging them in some way or making a donation to them would be a nice idea.
These models are decimated, retopologized and UV-unwrapped with Houdini. The Normal maps and the occlusion maps are generated with xNormal. The working project files of this process is contained in another repository (ThreeDScansWorking), so you can see the details if you want.