The ingenuity of the construction techniques used by Greek builders 2,000 years ago continues to dazzle the world. What did these ancient engineers get right? And how does looking to the past help ...

The ancient Inca built a complex system of roads that span some 20,000 miles and range in altitude from sea level to 14,000 feet, all without the benefit of special tools or even a formal writing ...

From ancient gears to early tools, the British Museum holds artifacts that reveal just how advanced early civilizations really were. This video takes you on a walkthrough of surprising pieces of ...