Celebrating the Summer Solstice at Stonehenge in Photos

Solstice
Celebrating the Summer Solstice at Stonehenge in Photos Niklas Hallen/AFP/Getty Images

A "strawberry moon" will light up the sky tonight, coinciding with the summer solstice—the longest day of the year—for the first time since 1967. Astronomers have hailed the event as a once or twice-in-a-lifetime occurrence.

An estimated 25,000 people are expected to gather at Stonehenge in the U.K., the ancient monument in Wiltshire where the solstice is traditionally celebrated.

This year, for the first time, those who would like to see the solstice from one of its most popular vantage points will have to pay to park at Stonehenge. English Heritage said it had made the decision to protect the stones and pay for the solstice celebrations, but some who want to celebrate have suggested they will protest the decision.

Solstice
Revellers witness a purple, pink and yellow sky as they celebrate the pagan festival of Summer Solstice at Stonehenge in Wiltshire, southern England on June 21, 2015. Niklas Hallen/AFP/Getty Images
summer solstice
The sun lights up the sky during the Summer Solstice at Stonehenge in Wiltshire, southern England on June 21, 2015. NIKLAS HALLE'N/AFP/Getty Images
Summer Solstice
People take part in a solstice ceremony at the ancient monument of Stonehenge, U.K. on December 22.Matt Cardy/Getty Images
Stonehenge Yoga
People perform yoga as they mark the summer solstice on Salisbury Plain in southern England on June 21, 2014. Kieran Doherty/Reuters
Stonehenge
People gather to take a selfie photograph as pagans and revellers gather at Stonehenge, hoping to see the sun rise, as they take part in a winter solstice ceremony at the ancient neolithic monument of Stonehenge near Amesbury on December 22, 2015 in Wiltshire, England. Matt Cardy/Getty Images
summer solstice stonehenge
A crowd dressed up in pagan costume dance and socialize to mark the Summer Solstice at Stonehenge in Wiltshire, southern England on June 21, 2015. NIKLAS HALLE'N/AFP/Getty Images
Stonehenge
Two men touch part of the large prehistoric monument at Stonehenge in Wiltshire, southern England during the Summer Solstice on June 21, 2015. Niklas Halle'n/AFP/Getty Images