Summer solstice at Stonehenge

Revelers prepare for the summer solstice dawn celebrations. (Tim Ireland / Getty Images)

June 21, 2014 5:50 AM PT

Some 36,000 sun watchers gathered on the Salisbury Plain to see the sun rise above the ancient stones.

A reveler who called himself Mad Alan celebrates the summer solstice, the longest day of the year. (Geoff Caddick / AFP/Getty Images)

Druids, pagans and other revelers gather at the ancient monument. (Tim Ireland / Getty Images)