A druid prays for peace during incantations at the summer solstice ceremony at Stonehenge on Salisbury plain in southern England June 21
A druid prays for peace during incantations at the summer solstice ceremony at Stonehenge on Salisbury plain in southern England June 21, 2011. Stonehenge is a celebrated venue of festivities during the summer solstice - the longest day of the year in the northern hemisphere - and it attracts thousands of revellers, spiritualists and tourists. Druids, a pagan religious order dating back to Celtic Britain, believe Stonehenge was a centre of spiritualism more than 2,000 years ago. REUTERS

June 21's summer solstice attracted over 18,000 people at Stonehenge to celebrate the longest day of the year.

The traditional Pagan ceremonies were conducted by Druid Arthur Uther Pendragon, at the prehistoric site of Stonehenge in Wiltshire.

A mix of sun worshippers, hippies and neo-pagans crowded to join the annual festival, dancing and chanting as the sun rose behind the Stonehenge at around 4:52 a.m.