Can you stamp 3d models onto terrain?

I am considering making a racing game; I want to include a few buildings scattered around the racetrack. I found some 3d models on turbosquid and cgtrader, but I’m not sure if I can import them to Unity and stamp them on a terrain. Any help or suggestions are appreciated.

@jm-03

Put the object as a tree on the terrain tools tree stamper, then, stamp away!