(CNN) — Along with its many other innovations, the Roman Empire revolutionized architecture with never-before-seen features, such as large-scale arches and dome roofs. And many of these structures ...

Roman concrete has shrugged off two millennia of earthquakes, wars, and weather that would pulverize most modern structures in a fraction of the time. The surprising reason is not mystical at all, but ...

Roman concrete helped build the Pantheon, aqueducts, and harbors that still stand after two millennia, and modern science is only now catching up to why it worked so well. This video breaks down the ...