Check out Roman Triumphal Arch - Photoscan 3D model on CGTrader for $15. High-quality mesh by virtual-dope: 1390000 polys, 695000 vertices. PBR, Textured, UV Mapped.
STL (Stereolithography, filesize: 15.9 MB), OBJ (OBJ, filesize: 33.1 MB), FBX (Autodesk FBX, filesize: 153 MB)