Egypt, third millennium b.c. The Great Pyramid of Giza is both the oldest of the Seven Wonders and the only one still standing. Built by the pharaoh Khufu (reigned ca. 2551–2528 b.c.) to serve as his ...

For 5,000 years scholars, generals, and mystics have been fascinated by the Egyptian pyramids. That obsession persists in the modern age. Today the Pyramids of Giza are surrounded by desert. But 4,600 ...

Researchers from Cairo and Munich uncovered “air-filled voids” beneath Menkaure pyramid’s eastern face, suggesting a long-suspected hidden entrance. Using electrical resistivity tomography, radar, and ...

A study suggests that 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 ...

A tetrahedron is the simplest Platonic solid. Mathematicians have now made one that’s stable only on one side, confirming a decades-old conjecture. In 360 BCE, Plato envisioned the cosmos as an ...

The researchers who claimed to have found a vast underground city beneath Egypt’s Great Pyramids doubled down on the wild theory Tuesday by saying they’ve found a second “hidden city.” Italian and ...

Why it's incredible: El Cono stands alone in the rainforest and has a mysterious pyramidal shape. Cerro El Cono is a 1,310-foot-tall (400 meters), pyramid-like formation in the Amazon rainforest. It ...

Two Italian scientists claim to have discovered 38,000-year-old structures buried deep beneath the pyramids. But there's a big reason to be skeptical. A pair of researchers has claimed to find ...

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 ...

Is this the real-life Atlantis? A 90-foot “pyramid” submerged just off the coast of Japan is turning heads — and could shake up everything we thought we knew about ancient civilizations. Sitting 82 ...

A research team’s astonishing claims that they discovered massive underground structures extending hundreds of feet deep beneath Egypt’s Khafre Pyramid sound like science fiction to experts. Scottish ...

The Israel Antiquities Authority and volunteers are excavating the site north of the Zohar Valley. Emil Aladjem / Israel Antiquities Authority Israeli researchers have discovered a strange pyramidal ...