If you pick up a map of Wiltshire, the lay of the land appears to be completely random, affected in the main by physical formations. But look again and notice how many ancient sites appear to be in line with each other - strange coincidence or something more meaningful?
Close to the white horse at Cherhill near Calne is the Lansdowne Monument, a 38 metre (125 foot) stone obelisk erected by Sir William Petty in 1845. Some say that it is no coincidence that the monument sits directly on one of Wiltshire's significant ley lines.
The Wiltshire writer and established ley-hunter, Laurence Main discovered that an important ley - or 'spirit path' as he describes it - passes directly through Landsdowne Monument.
In his Walks in Mysterious Wiltshire, Main suggests that the third Marquess of Lansdowne "may have been led by masonic knowledge to build his monument" and according the Main, these monuments are often found on ley lines.
Another significant Wiltshire ley runs through Stonehenge, Old Sarum, Salisbury Cathedral and Clearbury Ring. Dowser Romy Wyeth, from Codford near Warminster, demonstrated to the BBC how a line of energy can be detected at the centre of Stonehenge, again at Old Sarum and running through to the Cathedral Close and beyond.
...
http://www.bbc.co.uk/wiltshire/moonraking/spooky_leylines.shtml