Some Swedish treasure hunters stumbled on this thing last year in 300' of water while doing radar sweeps of the Baltic Sea... They sent divers down and were completely baffled... Have another set of divers/scientists studying it this month and still not sure what the hell it is...
Very interesting whatever it is, as I've read all available perspectives on this and there is a lot of mis-information about whatever this thing is.
Note the "drag marks" in the ocean bottom... divers say that the bottom is scored deeply by the object apparently sliding across the bottom.

Some links:
http://www.youtube.com/watch?v=ls7Qb37FxiAhttp://www.thetruthbehindthescenes.org/?p=26906Very, very intriguing, what do yall think?