"No one knows... who they were... or... what they were doing."
Well, we know a bit more now:
Neolithic site found near England's Stonehenge
LONDON (Reuters) - Evidence of a large settlement full of houses dating back to 2,600 BC has been discovered near the ancient stone monument of Stonehenge in southwest England, scientists said on Tuesday...And I bet this one was never in danger of being crushed by a dwarf.