STONEHENGE, England—All hail the rising sun. Around 8,000 revelers gathered around a prehistoric stone circle on a plain in southern England to express their devotion to the sun, or to have some communal fun. Druids, pagans, hippies, local residents, and tourists, many clad in an array of colorful costumes and even antlers, stayed and celebrated…

Stonehenge is one of the world’s most famous and most enigmatic prehistoric monuments. Dozens of huge standing stones were erected here during the Neolithic period, around 2900 B.C. Who were the men and women who erected such a monument? …

Studying the origins of the aptly named Mystery Hill megaliths, also known as America’s Stonehenge, whets one’s curiosity but does not satisfy—unless one is satisfied by the excitement of confounding mystery alone. The site, in North Salem, New Hampshire, includes stone monoliths and chambers spread across 30 acres. The stones are said to have complex astronomical…

Ancient artifacts and ruins all over the world have made many scientists question whether our currently accepted understanding of prehistory is correct. Here’s a look at some sites that have thrown a wrench in the old paradigm, remaining unexplained to this day. They seem to exhibit evidence of prehistoric civilizations far more advanced than scientists…

Revellers gathered at Britain’s Stonehenge in the English county of Wiltshire on Wednesday to bring in the winter solstice. People, many wrapped in blankets and cloaks, stood inside the stone circle of the neolithic monument, singing as the sun rose. Cheers erupted, followed by singing and dancing around the prehistoric stones. The visitors traveled to…

At least once a year, photographer Mike Carroll tries to make the trip to the Big Apple to witness an astronomical event popularly known as “Manhattanhenge.” An event coined by astrophysics personality Neil deGrasse Tyson, Manhattanhenge is a playful take on the ancient Stonehenge monument, southwest of London, UK, which accurately aligns with sunset on…