$24 The Natural History Museum Vienna and Palace Low-poly 3D model by SENSIET. Available on CGTrader with 220353 polys and 142127 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 34.4 MB), OBJ (OBJ, filesize: 5.01 MB), FBX (Autodesk FBX, filesize: 16.2 MB), STL (Stereolithography, filesize: 10.5 MB), TEXTURES (Textures, filesize: 9.06 MB), DAE (Collada, filesize: 14.8 MB)