$2 Madama Palace Turin 3D model by pliz. Available on CGTrader with 921608 polys and 461450 vertices. Check it out on CGHub.
STL (Stereolithography, filesize: 43.9 MB), OBJ (OBJ, filesize: 102 MB), BLEND (Blender, filesize: 88.5 MB), FBX (Autodesk FBX, filesize: 35.9 MB)