Circle

Buildings that utilize a circle as part or all of their overall form. Related Tags:  Arc, Arch, Cone, Cylinder, Dome, Ellipse, Extruded Curves, Geodesic Dome, Hexagon, Horseshoe Arch, Hyperboloid, Octagon, Oculus, Onion Dome, Parallelogram, Pentagon, Radial Plan, Semi-dome, Sphere, Square, Tholos, Triangle, Tube Structure, Vesica