Underground house Free 3D model

This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Buried deep under a mountain is this house. Only window is in the entry door. 3 bedrooms, 2 baths, utility room and a combined living room/dining room/kitchen. TY for the person (Tesler?) who supplied the mountain. Interior walls are left bare rock except for the partition walls. Ceilings are bare rock as well. This is not for a person who has claustrophobia!