Check out Inside Medieval Castle Low-poly 3D model on CGTrader for $12. High-quality Polygon mesh mesh by 3DFIGURES: 6180 polys, 7680 vertices. Textured, UV Mapped.
BLEND (Blender, filesize: 19.7 MB), OBJ (OBJ, filesize: 140 KB), FBX (Autodesk FBX, filesize: 153 KB), TEXTURES (Textures, filesize: 26.5 MB)