Rubble and Stone Wall Segment (Polygon mesh 3D model) is available on CGTrader for $8.99. Original author: New0Art. Specs: 91892 polys, 91801 verts.
C4D (Cinema 4D, filesize: 7.04 MB), OBJ (OBJ, filesize: 3.28 MB), 3DS (3D Studio, filesize: 4.23 MB), STL (Stereolithography, filesize: 8.75 MB)