Stonehenge's altar stone was quarried over 4,600 years ago, far from the Salisbury Plain in Wiltshire. But experts now know where it originated.

The prehistoric monument Stonehenge was built up to 5,000 years ago on ... which appear to be aligned on the sunrise and sunset on the mid-summer solstice," University of Bradford ...

Stonehenge is composed of blocks that weigh more than 45 tons and ... first 1,600 feet of the avenue from Stonehenge is built on the axis of the summer solstice sunrise and winter solstice sunset.

English Heritage, which manages the Stonehenge monument, will livestream summer solstice 2025 activities on June 20 to ring in the season.