There is an unsubstantiated story about the disappearance of a group of campers at Stonehenge in August 1971. At that time, people were allowed uninhibited access to the location day or night:
In August of 1971, a group pitched tents in the center of the circle, and lit a campfire. At 2 a.m., a severe thunderstorm quickly blew in over Salisbury Plain. Bright bolts of lightning struck the area, including nearby trees and the standing stones themselves.
A farmer and a policeman both said that Stonehenge lit up with an eerie blue light so intense they had to look away. The screams from the campers rang out, and the two witnesses rushed to the scene expecting to find injured or dead campers.
What they did find shocked the hell out them - the campers were gone. The smoldering tent pegs and the drowned remains of a campfire were all that remained.
Where the hell did the campers go? What happened to the tents?
To this day, they have not been found.
Considering the tent pegs were smoldering and the rest of the tent was gone leads one to believe that maybe the campers were incinerated by the lightening, if that is even possible. - truecrimediva.com
Another version of the story....
The mysterious standing stones of Stonehenge in England was the site of an amazing disappearance in August, 1971. At this time Stonehenge was not yet protected from the public, and on this particular night, a group of "hippies" decided to pitch tents in the center of the circle and spend the night. They built a campfire, lit several joints of pot and sat around smoking and singing. Their campout was abruptly interrupted at about 2 a.m. by a severe thunder storm that quickly blew in over Salisbury Plain. Bright bolts of lightning crashed down on the area, striking area trees and even the standing stones themselves. Two witnesses, a farmer and a policeman, said that the stones of the ancient monument lit up with an eerie blue light that was so intense that they had to avert their eyes. They heard screams from the campers and the two witnesses rushed to the scene expecting to find injured - or even dead - campers. To their surprise, they found no one. All that remained within the circle of stones were several smoldering tent pegs and the drowned remains of a campfire. The hippies themselves were gone without a trace. - rense.com
If the story is true (that is a big 'IF') then what could have possibly happened to the group of campers? Stonehenge is positioned at the center of a hub, or network, of alignment ley lines, making it a potential energy portal, or a place of power. There are 14 major ley lines that converge at Stonehenge that form, what many believe to be, a powerful vortex. One traditional method of locating ley lines is by drawing a line connecting two old ancient sites, or churches. Churches were often built on ancient sites to acquire their energy. In some cases churches were built in the site of a henge (ex. Winchester Cathedral)...at Avebury a whole village sits in the middle of a henge.
These ley lines interconnect most of Britain’s ancient sites. The term ‘ley lines’, was coined by Alfred Watkins in his acclaimed book Old Straight Trackpublished in 1925. In it he introduced his rediscovery of this natural phenomenon known to the ancients. His theory was that ancient sites around Britain had actually been constructed, or formed, in a given alignment between, and across, the landscapes of Britain.
According to John Bruno Hare, ley lines are alignments on the landscape of natural and artificial features, some of which follow perfectly straight tracks for miles. First discovered in Britain by the author of this book, Alfred Watkins, a photographer and inventor, ley lines were pursued eagerly by organized clubs in the period between the world wars. Interest in leys died out after the 1930s, but was revived in the 1960s, after the publication of a popular book on the subject, The New View Over Atlantisby John Michell. Latter-day ley-hunters took the concept much further than Watkins and the earlier enthusiasts. Dowsing, flying saucer paths, crop circles, biodynamic farming, and feng shui have all been associated with ley lines. Collections of ley lines have been said to conceal hidden messages, reveal the location of esoteric items, or contain star maps. The existence of ley lines is now one of the accepted tenets of New Age belief. This topic is collectively called 'Earth Mysteries'.
Watkins never attributed any supernatural significance to leys; he believed that they were simply pathways that had been used for trade or ceremonial purposes, very ancient in origin, possibly dating back to the Neolithic, certainly pre-Roman. His obsession with leys was a natural outgrowth of his interest in landscape photography and love of the British countryside. He was an intensely rational person with an active intellect, and would probably be a bit disappointed with some of the fringe aspects of ley lines today.
Originally just the existence of ley lines was considered speculative by academic archeologists and topographers. Since Watkins, there have been similar alignments discovered in far-flung locations, including the Atacama desert of Chile, the Southwestern United States, and other places; all of these can be directly traced to human activity, and associated with ceremonial and astronomical activities. So this probably makes the concept of similar alignments by Neolithic Britons more acceptable to traditional academics, once all the mystical connotations are subtracted. - sacred-texts.com / John Bruno Hare, June 17th, 2004
NOTE: Many psychics and clairvoyants have to ability to detect activity along ley lines through vibration or perception. Ley lines are thought to be magnetic in nature, the same 'lines' that birds, mammals, insects and bacteria use to migrate across long distances. Ley lines and geomancy, plus other esoteric subjects having to do with the Earth, are collectively noted as 'Earth Mysteries and Magic'...though, I believe there is a broader spiritual aspect to these geologic structures. Here is a link to several pages that describe the line of ancient sites around the world ...Lon
If Stones Could Speak: Unlocking the Secrets of Stonehenge (Orbis Pictus Honor for Outstanding Nonfiction for Children (Awards))
Stonehenge Monument Restored, Architecture Replica
Seven Sacred Sites: Magical Journeys That Will Change Your Life