Looking for Maunsell Sealand Forts? Get this Polygon mesh 3D model from WizardofCake via CGTrader for $350. Technical specs: 31432 polygons, 35376 vertices.
BLEND (Blender, filesize: 1.12 MB), OBJ (OBJ, filesize: 589 KB), FBX (Autodesk FBX, filesize: 647 KB), TEXTURES (Textures, filesize: 6.73 MB), STL (Stereolithography, filesize: 554 KB), 3DS (3D Studio, filesize: 268 KB)