Concrete was the foundation of the ancient Roman empire. It enabled Rome's storied architectural revolution as well as the construction of buildings, bridges, and aqueducts, many of which are still ...

An ancient Pompeii wall at a newly excavated site, where Associate Professor Admir Masic applied compositional analysis (overlayed to right) to understand how ancient Romans made concrete that has ...

Add Yahoo as a preferred source to see more of our stories on Google. The Arch of Caligula at the archaeological site of Pompeii, the ancient Roman city destroyed by Mount Vesuvius' eruption in AD 79.