Where Did It Come From?

Modern warships, cargo, and container ships are the cutting edge of maritime technology. But 2,500 years ago, no one dominated shipbuilding like the Greeks.

High-rise, high-density living isn't new. Romans were living in high-rise apartments 2,000 years ago. Travel to Rome and its ancient seaport of Ostia, where many of them still exist.

Discover how monumental masterpieces including the Great Pyramid, Library at Alexander, Temple of Karnak, Sphinx, and obelisks were built using only the most primitive tools and brute labor.

Travel to the heart of the Roman Empire to examine a remarkable civil engineering project that resulted in a 53-thousand-mile network of highways, which is little-changed today.

Surgeries, amputations, prescription medicine, fertility and contraception-what we associate with modern medicine was actually introduced by the Egyptians more than 5,000 years ago.

Travel to Mexico's Yucatan peninsula to get a firsthand look at the ancient world's most skilled astronomers and some of their achievements: the Maya.

How did China extract natural resources more than 2,000 years ago? Explore ancient drilling rigs and see how the modern-day science of geobotany was pioneered the Chinese.

Find out how ancient Chinese paper and silk making skills allowed them to make lighter than air objects and how this knowledge let them to sail into the wind to uncover maritime innovations.