Known as the 'Naupa Huaca portal', this mysterious stone sanctuary challenges everything we know about ancient engineering. Carved with impossible precision into solid rock, the site features a ...

A tiny copper-alloy tool long overlooked in a museum collection is reshaping what archaeologists know about the origins of human engineering. Researchers said the artefact shows ancient Egyptians were ...

A study suggests the first of seven key pyramids in Egypt, the Step Pyramid of Djoser, was built using a hydraulic lift. Dated to about 4,500 years ago, this would move up the introduction of major ...

Astonishing evidence for an ancient form of sophisticated machining into very hard stone can be seen on one of the artifacts ...