Abstract: A skeletal structure is provided, including a plurality of preferably resiliently flexible rings, each ring passing through and thus being interwoven with immediately adjacent rings, preferably five, so that the rings collectively form a flexible mesh, the flexible mesh being formed into a surface having a double curve substantially defining at least a part of a spherical surface. Each ring is formed from a resiliently flexible linear member having first and second member ends, preferably releasibly interconnected by an overlapping clasp. The spherical surface may be a whole sphere, and may comprise thirty two rings. The spherical surface alternatively may be a hemisphere, which is preferable when the skeletal structure is used as the frame for a building, or the roof of a building such as a domed stadium. The bending of resiliently flexible linear material around to close on itself places the resulting rings into tensile loading, or in tension.