One for the Laundry?
Planning a cycle route out east of Cambridge, I notice that a field in the vicinity of Fulbourn, famed site of Cambridge's mental hospital, has been carved into the likeness of some cyclopean cephalopodic deity.
http://maps.google.co.uk/?ie=UTF8&om=1&z=18&ll=52.17686,0.220483&spn=0.002411,0.003449&t=k
http://maps.google.co.uk/?ie=UTF8&om=1&z=18&ll=52.17686,0.220483&spn=0.002411,0.003449&t=k