Ley lines? Energy lines? Surely the preserve of myth makers and fairy followers? Not to start with. The term was originally posited, just three years after the end of World War One, by Alfred Watkins, a councillor in rural Herefordshire in the UK. Born in 1855 into a well-to-do farming family, Watkins was also an amateur archaeologist; it was while out riding in 1921 that he looked out over the landscape and noticed what he later described as a grid of straight lines that stood out like "glowing wires all over the surface of the county", in which churches and standing stones, crossroads and burial mounds, moats and beacon hills, holy wells and old stone crosses, appeared to fall into perfect alignment.