OK, I admit it: I still occasionally draw on my early education. Sometimes, while sitting in the fast-food drive-thru, the old food pyramid guiltily works its way to the front of my consciousness. I'm ...

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 ...

A new theory shows the Great Pyramid was built from the inside out, using counterweights and pulleys instead of massive ...

The Step Pyramid stands more than 200 feet tall and is made from stones weighing more than 650 pounds. Some other researchers are not yet convinced by the idea that it was built using a hydraulics ...