Secret of Stonehenge

Stonehenge is only the most famous of more than 1,300 stone rings across the British Isles. Around 4400 years ago, the migration of the Beaker people into ancient Britain led to a near-complete replacement of its earlier inhabitants, who had raised megaliths like Stonehenge. Researchers have found that the placement of the stones seems to correspond to important astronomical events, such as the solstices and equinoxes, but the purpose of these alignments remains unclear.