Check out Modern building 018 tower and skyscraper Low-poly 3D model on CGTrader for $7. High-quality mesh by Qobadi: 69012 polys, 95627 vertices. Textured, UV Mapped.
FBX (Autodesk FBX, filesize: 42.6 MB), MAX (Autodesk 3ds Max, filesize: 36.6 MB), JPG (JPG, filesize: 18.3 MB)