Looking for Skyscrapers? Get this Polygon mesh 3D model from Dufe via CGTrader for $2.
STL (Stereolithography, filesize: 34.9 MB), OBJ (OBJ, filesize: 90.7 MB), MAX (Autodesk 3ds Max, filesize: 138 MB), FBX (Autodesk FBX, filesize: 19.6 MB), DWG (AutoCAD, filesize: 2.56 MB), IGE (IGES, filesize: 9.72 MB)