Check out Stonehenge Monument Landscape and 3D Printable Model Low-poly 3D model on CGTrader for $38. High-quality Polygon mesh mesh by geodeticworks: 5096055 polys, 2552693 vertices. Textured, UV Mapped.
STL (Stereolithography, filesize: 288 MB), OBJ (OBJ, filesize: 385 MB), BLEND (Blender, filesize: 881 MB)