Ellipsoid

Buildings that utilize an ellipsoid as part or all of their overall form. Related Tags:  Bubble, Cone, Cube, Cuboid (Box), Cylinder, Dome, Double Helix, Ellipse, Elliptic Cylinder, Half Cylinder, Helix, Hyperbolic Paraboloid, Hyperboloid, Paraboloid, Pyramid, Sphere, Tetrahedron, Torus