A reveller hugs a stone of the Stonehenge ancient monument in Wiltshire, Britain, 21 June 2014, after witnessing the sunrise in celebration of the Summer Solstice. Tens of thousands of summer solstice revellers celebrated the beginning of the longest day of the year at Stonehenge. Will Oliver / EPA
A reveller called Mad Alan (real name) celebrates the 2014 summer solstice at sunrise at the prehistoric monument Stonehenge. Geoff Caddick / AFP photo
Revellers perform yoga as they celebrate the summer solstice on Salisbury Plain. 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. Kieran Doherty / Reuters
A girl takes part in the summer solstice dawn celebrations after Druids, pagans and revellers gathered for the Summer Solstice sunrise at Stonehenge. A sunny forecast brought thousands of revellers to the 5,000 year old stone circle in Wiltshire to see the sunrise on the Summer Solstice dawn. Tim Ireland / Getty Images
People prepare for the summer solstice dawn celebrations as Druids, pagans and revellers gathered the night before the Summer Solstice sunrise at Stonehenge. Tim Ireland / Getty Images)
A sunny forecast brought thousands of revellers to the 5,000 year old stone circle in Wiltshire to see the sunrise on the Summer Solstice dawn. Tim Ireland / Getty Images
People begin to clear up following the Summer Solstice sunrise at Stonehenge. Tim Ireland / Getty Images