Check out Realistic Medieval Watchtower Low-poly 3D model on CGTrader for $20. High-quality mesh by Craftsman-CG: 82466 polys, 83664 vertices. PBR, Textured, UV Mapped.
BLEND (Blender, filesize: 6.66 MB), OBJ (OBJ, filesize: 3.72 MB), FBX (Autodesk FBX, filesize: 10.3 MB), TEXTURES (Textures, filesize: 937 MB)