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April 5th, 2011
03:51 PM ET
Clue #2... can you guess what we'll be "Revealing"?
Second day of the week means second clue as to what this week's edition of "The Revealer" will focus on.
The photo above shows a little bit more of the subject... can you guess what it is?
Here's another hint: It was quite a secret when residents of the building outgrew their previous space and had to relocate to this spot.
Chew on that and check out the two visual clues we've posted, then go into the "Comments" section to the left and let us know what you think it might be! Remember, no penalties for wrong guesses - and we'll read the name of the first person to guess correctly on Thursday's show, when we debut the new "Revealer" segment!
About The Revealer
A new Back|Story series that unearths fascinating new secrets about places and stories you thought you knew. Every other Thursday on Back|Story“The Revealer” Game
Join the action on our new series, “The Revealer.” Use the photo clues to figure out what the subject of this week’s episode will be. Click on the picture to the left for more.Back|Story on Flickr
MI5 on the Thames in London
It is the secret service (MI6) building in London.
Aedas architecture offices in Gdynia, Poland
The Picture is MI 6 HQ in London
MI 6 in London.
Associated press moving to Emigrant Savings Bank Building.