Check out Upper Belvedere - Vienna - Austria 3D model on CGTrader for $77. High-quality mesh by martinfratric: 7695000 polys, 23086000 vertices. Textured.
STL (Stereolithography, filesize: 367 MB), OBJ (OBJ, filesize: 719 MB), 3MF (3D Manufacturing File, filesize: 157 MB), FBX (Autodesk FBX, filesize: 299 MB), TEXTURES (Textures, filesize: 2.51 MB)