The Callanish Stones Mystery

Published: Aug. 5, 2019, 8:20 p.m.

There are an arrangement of standing stones in Scotland that were erected in the late Neolithic era, and were a focus for ritual activity during the Bronze Age. The stones weigh several tons, their purpose and who built them remain a mystery, though it has been said that they could be anything from a marker for aliens to giants that were turned to stone.