Mostly because it was remodelled on a whim by a perverted marmalade magnate, using such archaeologically sensitive techniques as dynamiting the fuck out of the area, and is thus not especially authentic. We dug up a whole new(/old) Avenue going into it - not really known about since Stukeley's drawings, and commonly thought to be the result of his indulgence in recreational Massive Drugs - that was a bit weird. You could still smell the cinders as you broke the soil above the burning pits...

In any event, if you're in that area and fancy a bit of creepy, try West Kennet Long Barrow by night.
( Happy Phantom has been to Hastings, Brighton, and Eastbourne too, Thu 14 Apr 2011, 1:52, 1 reply)

West Kennet
Slept in there one halloween night, fantastic place, the creepiest thing was some warden fella coming along and shouting at us in the morning
(insomniac-surfer oh go on then, just this once, Thu 14 Apr 2011, 14:00, closed)