A mystery connected to the famed Stonehenge might have finally been solved, as the 5,000-year-old structure has sparked experts' curiosity for years. The stone comes from southwest Wales and ...

Begun about 3000 B.C., Stonehenge was built in stages over 1,400 years. The structure, whose purpose remains a mystery, started out as a huge earthen ditch with wooden posts and walls. The ...

There has always been plenty of mystery surrounding the world’s oldest structures. From the pyramids of Egypt to Stonehenge, we might never fully know how they were built and what their exact ...

The ancient Kanayama Megaliths are extraordinary in their complexity. Across three sites, the solar observatories accurately measure not only solstices and equinoxes but also leap years. But they ...