Hidden beneath a hill in Mexico lies the world’s largest pyramid by volume—the Great Pyramid of Cholula. Long thought to be a natural formation, new evidence reveals a complex built by unknown ...

The chance rediscovery of the ancient Chinese Sanxingdui civilization is legendary in and of itself. In 1929, an unsuspecting peasant in Sichuan province stumbled upon a cache of jade relics while ...

In two of the most forbidding landscapes on Earth—the Empty Quarter of the Arabian Peninsula and the Nazca Desert of ...

The team that uncovered hidden structures beneath Egypt's Giza pyramids has released new evidence they say leaves little room ...