Construction of the world's largest telescope moves forward with progress of the dome and housing for the primary mirror.

Glass is a great choice for a geodesic dome greenhouse! In 1988, the Missouri Botanical Garden tore all 3,625 plastic panels from its geodesic greenhouse, the Climatron, and replaced them with glass.

One of the largest domes in the world, the Pantheon, is made of concrete. You saved a lot of money building this dome with concrete. But remember: concrete is very heavy. About halfway down the ...