What was the function of the structures you see at the three points marked on the map at this link?

http://maps.google.com/maps/ms?ie= UTF8&hl=en&msa=0& msid=104245191237712906664.000 4427e679acbfa0f156&ll=50.95596, 0.953665 &spn=0.00171,0.004334&t=h&z=18&om=1

(Your browser will have to be able to handle Google maps if you want to get this one)

Here’s another clue:

Cracked by: udupendra , jayanth , madhur , vaibhav008 , Dibyo , nishas thambi , prasanth , nishansolo , shenoyvarun86 , bs and sidsen.

udupendra, jayanth, madhur, vaibhav008, Dibyo, nishas thambi, prasanth, nishansolo, shenoyvarun86, bs and sidsen