Prague Low-poly (Polygon mesh 3D model) is available on CGTrader for $299. Original author: 3D-City-Projects. Specs: 1 polys, 1 verts.
OBJ (OBJ, filesize: 80.1 MB), MAX (Autodesk 3ds Max, filesize: 294 MB), FBX (Autodesk FBX, filesize: 156 MB), DAE (Collada, filesize: 144 MB)