Stonehenge has long been one of the world's most mysterious monuments. The massive rock circle has given up a few of its secrets to a digital scanning project led by historical-preservation organization English Heritage with an assist from the York Archaeological Trust. The 3D laser-scanning data collected last year has unveiled 72 hidden ax-head carvings in the surface of the stone.
Stonehenge was given a complete 3D-scanning treatment, generating 850 gigabytes of data. Archeologists put software from Bentley Systems to work to analyze the data. The resulting data crunching showed 72 carvings depicting Bronze Age tools that had been hiding from the naked eye for thousands of years. Almost all show ax heads, but one is likely a dagger.… Read more