You can learn a lot about a civilization by studying how they went to the bathroom, and how they got rid of human waste. A civilization's plumbing can teach us about the diets they ate ...

We asked Aicher, author of "Guide to the Aqueducts of Ancient Rome," about the Romans' sophisticated water distribution system, including its elegant aqueducts. Here's what he told us: NOVA ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The ruins of an ...

Instead, the archaeologists — budding and not — last summer uncovered what may be the oldest existing example in the ancient Roman world of a mikvah, a Jewish ritual bath. They have ...