Sci-fi architecture 14 3D model is available on CGTrader for $28. Original author: chtazi. Specs: 363473 polys, 896424 verts.
SKP (Sketchup, filesize: 12.8 MB), BLEND (Blender, filesize: 5.26 MB), OBJ (OBJ, filesize: 15.4 MB), FBX (Autodesk FBX, filesize: 19.7 MB), MAX (Autodesk 3ds Max, filesize: 3.32 MB), C4D (Cinema 4D, filesize: 7.64 MB), MA (Autodesk Maya, filesize: 13.5 MB), GLTF (glTF, filesize: 7.69 MB), 3DS (3D Studio, filesize: 8.98 MB), BIP (KeyShot, filesize: 9.15 MB), DAE (Collada, filesize: 3.42 MB), 3DM (Rhinoceros 3D, filesize: 7.52 MB)