Check out SciFi Building 7 Low-poly 3D model on CGTrader for $3. High-quality mesh by EricDesigns: 21079 polys, 19228 vertices. Textured.
STL (Stereolithography, filesize: 8.3 MB), OBJ (OBJ, filesize: 10.4 MB), 3DS (3D Studio, filesize: 7.36 MB), C4D (Cinema 4D, filesize: 9.95 MB), FBX (Autodesk FBX, filesize: 8.81 MB)