This is a concept of a futuristic military command bunker building.
STL (Stereolithography, filesize: 1.25 MB), OBJ (OBJ, filesize: 2.9 MB), 3DS (3D Studio, filesize: 1.22 MB), PNG (PNG, filesize: 8.38 MB), FBX (Autodesk FBX, filesize: 2.07 MB), DAE (Collada, filesize: 2.4 MB)