Giant Egg Thing?

Thursday, 29th December 2005 by

Can anyone figure out what on earth this giant egg-like thing is, near Acton, Massachusetts?

Update: As ever our readers have come to the rescue, and it seems that this is the Annursnac Hill Reservoir, a covered water storage facility sitting on the top of Annursnac Hill. There's a fantastic birds-eye view of it over at Live Local, although Safari users be aware that it doesn't work with your browser yet, but it works just fine in Firefox.

Thanks to Jesse.