Marble wall 62 3D model is available on CGTrader for $19. Original author: notfun. Specs: 100 polys, 100 verts.
STL (Stereolithography, filesize: 714 KB), OBJ (OBJ, filesize: 459 KB), MAX (Autodesk 3ds Max, filesize: 953 KB), FBX (Autodesk FBX, filesize: 912 KB)