Backstage, Michael Jackson songs were being played in tribute, and fans talked of an impromptu memorial for the late singer at the "Stone Circle, " a neolithic monument in the grounds of the venue.

CNN: Michael Jackson: The world pays tribute to King of Pop

The remnants of an ancient stone prayer circle stood before me, sunken and eroded, but still visible after an estimated 5, 000 years.

BBC: In Ireland, hiking for ancient relics hidden by fog

Stonehenge, the mysterious neolithic stone circle in Stonehenge and Avebury UNESCO World Heritage Site, has been spiritually significant for thousands of years.

UNESCO: UK National Commission for UNESCO - Longest crowds for the longest day, as Stonehenge solstice visitors reach 23,000