The Pena Palace Low-poly 3D model is available on CGTrader for $24. Original author: SENSIET. Specs: 139190 polys, 100689 verts.
BLEND (Blender, filesize: 29.4 MB), OBJ (OBJ, filesize: 2.96 MB), FBX (Autodesk FBX, filesize: 4.77 MB), TEXTURES (Textures, filesize: 12.4 MB), DAE (Collada, filesize: 15.9 MB), STL (Stereolithography, filesize: 6.64 MB)