Check out Pyramid Low-poly 3D model on CGTrader for $8. High-quality mesh by edplus: 2252 polys, 1521 vertices. Textured, UV Mapped.
STL (Stereolithography, filesize: 49.2 MB), OBJ (OBJ, filesize: 49.2 MB), DAE (Collada, filesize: 49.2 MB), FBX (Autodesk FBX, filesize: 49.2 MB)