

The sun rises behind the Stonehenge monument in England, during the summer solstice shortly after 4:52 a.m., on June 21. Thousands of New Agers and neo-pagans danced and whooped in delight Monday as a bright early morning sun rose above the ancient stone circle of Stonehenge, marking the summer solstice. About 20,000 people crowded the prehistoric site on Salisbury Plain, southern England.
People dance and play music as they wait for the sunrise during an all-night party to celebrate the summer solstice at the Stonehenge monument, England, early Monday, June 21, 2010. Thousands of New Agers and neo-pagans danced and whooped in delight Monday as a bright early morning sun rose above the ancient stone circle. AP
Revellers celebrate as the sun ri,ses behind Stonehenge during the summer solstice in Wiltshire in southern England, on June 21. The festival, which dates back thousands of years, celebrates the longest day of the year when the sun is at its maximum elevation. Modern druids and others gather at the landmark every year to see the sun rise on the first morning of summer.
The moon sets over prehistoric Stonehenge, a World Heritage Site, on Salisbury Plain in Wiltshire, England. NEWSOM
A Druid walks past the Stonehenge monument as he celebrates the summer solstice, following an annual all-night party.
Revellers celebrate as the sun rises behind Stonehenge on the first morning of summer.
People dance as they celebrate the summer solstice at the Stonehenge monument.
People raise their hands during the summer solstice at the Stonehenge monument.
Stonehenge, on Salisbury Plain, England, was built in phases. The first was begun more than 5,000 years ago. One theory is that the stones were used to track astronomical phenomena, such as the spring equinox.
A woman reflects as she touches part of the Stonehenge monument, celebrating the summer solstice on June 21. Druids, pagans, and partygoers crammed into the mystic stone circle to cheer, bang drums and shake tambourines in an effort to greet the sun on the longest day of the year in the Northern Hemisphere, the summer solstice.
Protesters look down at police and security guards from atop one of the stones at Stonehenge on Salisbury Plain on June 21, 1999. About 200 people, who invaded the prehistoric Stonhenge monument to observe the summer solstice, clashed with police and security officials who were trying to evict them from the site. English Heritage, the owners of the site, had given special access to some 150 people to carry out celebrations and rituals. However about 200 who had nothing to do with the official celebration broke through the perimeter fence.
Stonehenge was built over three phases between 3000 BC and 1600 BC. It is one of Britain's most popular tourist attractions: more than 750,000 people visit every year.
Modern druids and others gather at Stonehenge every year to see the sun rise on the first morning of summer.