The pyramids may have been built using a sophisticated hydraulic system, according to a new study in Egypt. Evidence of ancient Egyptians using water pressure to lift stone blocks was discovered at ...

The pyramids of Giza are among the oldest monumental stone buildings ever created, and also contain the two tallest ancient pyramids in the world. The Great Pyramid - the tallest among the trio - is ...

It was a real pyramid scheme. Scientists have proposed a groundbreaking new theory on how Egypt’s Great Pyramid was built, positing that they used a pulley and counterweight system to erect it so ...

Color illustrations, including front cover. Hidden ramps may solve the mystery of the Great Pyramid's construction. https://siris-libraries.si.edu/ipac20/ipac.jsp ...