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 ...

Yet its survival goes beyond mere luck; it is the product of brilliant engineering that has defied centuries of wear and tear. So How Did the Pantheon’s Dome Stand the Test of Time? Let’s explore this ...

It will take a lot of iron chains and money to keep your heavy concrete dome from collapsing. Besides, there's an easier -- and less risky -- way to build a dome this tall today. Try again!