Abstract: A dome-shaped structure and method of constructing same is disclosed having a base foundation and a plurality of inner and outer stringers. Each inner and outer stringer has a first end which is circumferentially spaced and attached to the base foundation. The structure includes a support assembly for supporting the second end of the plurality of inner and outer stringers at a substantially central location above the base foundation. The circumferentially spaced inner stringers are located within the periphery formed by the circumferentially spaced outer stringers at the base foundation and the second ends of the plurality of inner stringers are below the second ends of the plurality of outer stringers. An outer shell is attached to the plurality of outer stringers and an inner shell is attached to the plurality of inner stringers. A substantially continuous enclosed space is formed between the inner and outer shells.