Geodesic domes are a very efficient way to enclose wide spaces without using columns. The struts are mainly loaded in compression or in tenssion. It was developed in the 20th century by American engineer and architect R. Buckminster Fuller.
Geodesic dome prototype constructed with LATTICESTRUCT. Two general views of a lattice dome of (geodesic frequency 2) and detailed views of one hexagonal and one pentagonal node are shown. Note that the structural members horizontally linking nodes are solid squared bars whereas the remaining members are tubes.