Revelers at a Celtic summer solstice celebration at Stonehenge.

Each year revelers like these travel to Stonehenge to celebrate the summer solstice.

Photograph by Jim Richardson, National Geographic

Stonehenge Revealed: Why Stones Were a "Special Place"

Lead archaeologist at Stonehenge discusses his team's discoveries in new book.

ByRachel Hartigan
Published June 23, 2013