Ancient masters ... the Segovia aqueduct is a UNESCO World Heritage site, and one of the best preserved Roman aqueducts in the world. Built to carry water from the Frío River 10 miles away ...

We asked Aicher, author of "Guide to the Aqueducts of Ancient ... feature of Roman aqueducts. NOVA: So they were actually building tunnels? AICHER: Yes. A tunnel might be five, 10, or even 20 ...

The Aqua Marcia was the longest of Rome’s aqueducts, running nearly 60 miles from its source in the countryside to the heart of the city. It was built between 144 and 140 B.C. by Julius Caesar ...

Aqueducts are one of the wonders of the Roman Empire. These graceful structures are not only majestic, but are engineering marvels that survive to this day. In "Construct an Aqueduct," you are ...

Because of its waterproof properties, opus signinum was often used in Roman baths, aqueducts ... the sunken party town of ...