The mysteries of Stonehenge are revealed sometimes by unusual methods—forgetting to water its grass or whacking its stones with quartz. In this case, it just took four years of staring at the ground.

Archaeologists have used ground-penetrating digital mapping technology to discover that Stonehenge was once dwarfed by a massive "super henge" nearby. The findings come after the completion of a ...

Researchers say they have made one of the most significant archeological findings in British history: a vast stone monument underground, dating back 4,500 years, which is part of a “super-henge” that ...