The ingenuity of ancient Egyptian engineers may have been even more ahead of their time than we thought. A new study suggests a currently unexplained ancient structure may have been part of a water ...

An ancient, submerged bridge in a cave on the Spanish island of Mallorca is helping researchers determine when humans first settled on islands across the western Mediterranean Sea thousands of years ...

More than 2,000 years ago, Greek artisans built a compact machine of interlocking gears that could track the heavens with a precision that still unsettles modern engineers. The corroded fragments of ...

The same travertine quarries near Rome that built St. Peter’s Basilica and the Colosseum are still being dug out today.

The Step Pyramid of King Djoser, on the Saqqara plateau in northern Egypt, is an awesome feat of engineering, and experts still do not understand the techniques used to erect it. Built about 4,500 ...

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

A groundbreaking study suggests the ancient Egyptians may have used hydraulic power before we could have imagined this skill. They did not utilize just ramps and manpower, to build the Step Pyramid of ...

(CNN) — An ancient, submerged bridge in a cave on the Spanish island of Mallorca is helping researchers determine when humans first settled on islands across the western Mediterranean Sea thousands of ...