Round house Free 3D model

This 3D model was originally created with Sketchup 15 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Cleaning up the office, ran into this drawing. Thought it would make an interesting model. Sort of a 2 layer round house on a square base with a silo for a stairwell. Living areas on the 2nd and 3rd floors. Public areas on the 1st floor. How do you drive a person nuts? Put him in a round room and tell him to sit in the corner!